The alpha particles have the lowest penetrating power, followed by beta particles, while gamma rays possess the highest ability to penetrate substances.
In increasing order of their ability to penetrate substances, the different types of radioactive decay are:
Alpha particle: Alpha particles consist of two protons and two neutrons and are relatively large and heavy. Due to their size and positive charge, they have limited penetrating power and can be easily stopped by a sheet of paper or a few centimeters of air.
Beta particle: Beta particles are high-energy electrons (beta-minus decay) or positrons (beta-plus decay) emitted during radioactive decay. They have greater penetrating power than alpha particles but are still relatively easily stopped by a few millimeters of aluminum or a few meters of air.
Gamma ray: Gamma rays are electromagnetic waves with high energy and frequency. They have the highest penetrating power among the three types of radioactive decay. Gamma rays require thick layers of dense materials such as lead or concrete to significantly reduce their intensity.
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The question is below in the file
Answer:
A
Explanation:
just do it
Space shuttles are made out of three main parts: rocket boosters, a fuel tank, and a(n) ___________.
Answer:
Orbiter
Explanation:
Space shuttles are made out of three main parts: rocket boosters, a fuel tank, and orbiter (the part that resembles an airplane
Sputnik is the Russian name for __________.
copper melting is a reversible or irreversible.
Answer:
Its a physical change so its reversible
Explanation:
hope it helps
HELP ASAP 50 POINTS EACH!!!!!!!!!! Based on the kinetic molecular theory, which of the following statements is correct about a sample of gas at a constant temperature and volume?
The net kinetic energy of its particles decreases due to collisions.
The net kinetic energy of its particles increases due to collisions.
lt has a constant average kinetic energy.
Its average kinetic energy is always zero.
Answer:
It has a constant average kinetic energy.
Explanation:
According to the kinetic molecular theory, the particles of a gas are in constant random motion and possess kinetic energy. This kinetic energy is directly proportional to the temperature of the gas.
If the sample of gas is at a constant temperature and volume, it means that the average kinetic energy of its particles is constant.
C, it has a constant average kinetic energy is the correct statement.
Explanation: The kinetic molecular theory of gases states that a gas contains an enormous number of atoms/molecules.
The kinetic-molecular theory of gases can be stated as such: A gas consists of molecules in constant random motion. Gas molecules influence each other only by collision; they exert no other forces on each other. All collisions between gas molecules are perfectly elastic; all kinetic energy is conserved.
Happy to help, have a great day! :)
Post Test: Energy and Changes in Matter
Select the correct answer.
A student places a 12-gram cube of ice inside a container. After six hours, the student returns to observe the contents of the container. Which sentence
suggests that the container is an open system?
O A. The container contains 12 grams of liquid water and no ice.
O B.
The container contains 12 grams of ice and no liquid water.
OC. The container contains 8 grams of liquid water and no ice.
OD. The container contains 8 grams of ice and 4 grams of liquid water.
OE.
The container contains 8 grams of liquid water and 4 grams of water vapor.
Reset
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The sentence that suggests that the container is an open system is option C: "The container contains 8 grams of liquid water and no ice."
In an open system, matter can freely enter or leave the system. In this case, if the container contains only liquid water and no ice, it indicates that some of the ice has melted and the resulting liquid water has escaped from the container. This suggests that matter (in the form of liquid water) has left the system, indicating an open system.
Option A suggests that the container contains 12 grams of liquid water and no ice, which implies that all of the ice has melted and the liquid water remains inside the container. This does not necessarily indicate an open system as the liquid water could still be contained within a closed system.
Option B suggests that the container contains 12 grams of ice and no liquid water, indicating that none of the ice has melted. This does not provide information about the system being open or closed.
Option D suggests that the container contains 8 grams of ice and 4 grams of liquid water, indicating that some of the ice has melted but the liquid water remains inside the container. This does not necessarily indicate an open system as the liquid water could still be contained within a closed system.
Option E suggests that the container contains 8 grams of liquid water and 4 grams of water vapor. This indicates a phase change from liquid to vapor, but it does not provide information about whether the system is open or closed.
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A car tire is inflated to 82.0 kPa in a repair shop where the temperature is 26.0 C
what is the temperature of the air inside the tire is the pressure increases to 87.3 kPa, when the car is taken outside
To determine the temperature of the air inside the tire when the pressure increases to 87.3 kPa, we can use the ideal gas law equation:
PV = nRT
Where:
P = pressure
V = volume
n = number of moles
R = gas constant
T = temperature
Assuming the volume of the tire remains constant, we can rearrange the equation as follows:
P₁/T₁ = P₂/T₂
Where:
P₁ = initial pressure (82.0 kPa)
T₁ = initial temperature (26.0 °C + 273.15 K) [converting Celsius to Kelvin]
P₂ = final pressure (87.3 kPa)
T₂ = final temperature (unknown)
Substituting the values into the equation:
82.0 kPa / (26.0 °C + 273.15 K) = 87.3 kPa / T₂
Now, let's solve for T₂:
T₂ = (87.3 kPa * (26.0 °C + 273.15 K)) / 82.0 kPa
Calculating the expression:
T₂ ≈ 299.19 K
To convert this temperature back to Celsius:
T₂ ≈ 299.19 K - 273.15 ≈ 26.04 °C
Therefore, the temperature of the air inside the tire, when the pressure increases to 87.3 kPa, is approximately 26.04 °C.
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How many sigma bonds found in 1 chloro, 1,3 penta-diene
There are 6 sigma bonds in 1-chloro-1,3-pentadiene.
In 1-chloro-1,3-pentadiene, let's break down the structure to count the number of sigma bonds
The compound 1-chloro-1,3-pentadiene has the following structure:
Cl
H2C=C=CH-CH2-CH3
To count the sigma bonds, we examine each carbon atom and its attached atoms or groups.
Starting from the left side:
The first carbon (C1) is bonded to one hydrogen (H) atom and two other carbon atoms (C2 and C3) by sigma bonds.
The second carbon (C2) forms a double bond with the third carbon (C3), so they share one sigma bond and one pi bond.
The third carbon (C3) is also bonded to the second carbon (C2) and the fourth carbon (C4) by sigma bonds.
The fourth carbon (C4) is bonded to the third carbon (C3) and the fifth carbon (C5) by sigma bonds.
The fifth carbon (C5) is bonded to one hydrogen (H) atom and one methyl (CH3) group by sigma bonds.
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305.79 of 0₂ burned with C₂H6 How many
moles of CO2
Answer:
The amount of CO₂ produced can be calculated using the mole ratio of CO₂ to C₂H6:
2 mol CO₂ / 1 mol C₂H6 = x mol CO₂ / 1.01 mol C₂H6
x = 2 mol CO₂ / 1 mol C₂H6 × 1.01 mol C₂H6 = 2.02 mol CO₂
Therefore, 2.02 moles of CO₂ were produced.
Sulfur oxides and nitrogen oxides are pollutants that are produced when fossil fuels are burned. Sulfur oxides and nitrogen oxides react with water in the atmosphere, which leads to the production of sulfuric acid and nitric acid, and thus acid rain. Rainwater is naturally acidic and has a pH of approximately 5.6, but acid rain has a lower pH, sometimes below 4. Which of the following correctly compares the concentration of H+ in acid rain with a pH of 4.6 and the concentration of H* in rain that is naturally acidic and has a pH of 5.6?
A
The H* concentration in the acid rain is a factor of (5.6) times higher than the H* concentration in the rain that is naturally acidic.
B
The H* concentration in the acid rain is 2 times higher than the H* concentration in the rain that is naturally acidic
C
The HI* concentration in the acid rain is 4.6 times higher than the HI* concentration in the rain that is naturally acidic.
D
The H* concentration in the acid rain is 10 times higher than the HI concentration in the rain that is naturally acidic.
The hydrogen ion concentration in the acid rain is 10 times higher than the HI concentration in the rain which is naturally acidic. Option D.
pH and acid rainThe pH scale is logarithmic, which means that a change of one pH unit represents a ten-fold change in hydrogen ion concentration.
Rainwater that is naturally acidic and has a pH of 5.6 has a hydrogen ion concentration of [tex]10^{5.6[/tex] moles per liter.
Acid rain with a pH of 4.6 has a hydrogen ion concentration of [tex]10^{4.6[/tex] moles per liter.
Therefore, the ratio of H+ concentration in acid rain to that in naturally acidic rain can be calculated as:
[H+] in acid rain / [H+] in naturally acidic rain = 10^(-4.6) / 10^(-5.6) = 10^(1) = 10
This means that the concentration of hydrogen ion in acid rain with a pH of 4.6 is 10 times higher than the concentration of H+ in rain that is naturally acidic and has a pH of 5.6.
In other words, the hydrogen ion concentration in the acid rain is 10 times higher than the hydrogen ion concentration in the rain which is naturally acidic.
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Urgent help please
Question 9 (1 point)
What is the pressure of a sample of Xenon gas that originally occupied 4.0L at a
pressure of 4.3atm, if the volume is increased to 9.OL?
Your Answer:
Answer
units
9.7atm
Explanation:Ideal gas laws let us find different characteristics of gas through its changes.
Boyle's Law
Boyle's law describes the relationship between pressure and volume. This law states that volume and pressure are inversely proportional. This means that as volume increases, pressure decreases. In equation form, Boyle's law is:
P₁V₁ = P₂V₂In the question, the new volume is greater than the original. This means that the new pressure must be less than the original pressure.
Solving for P₁
In order to find the original pressure, we can plug in the information we know.
P₁ * 4.0L = 4.3atm * 9.0LNow, divide both sides by 4.0L.
P₁ ≈ 9.675atmThis pressure is greater than 4.3atm, which follows the prediction we made earlier. So, this is a reasonable answer. Since this question involves measured values, we should round according to significant figure rules. This means that the original pressure is 9.7atm.
Assessment: Air Pollution
Factories are a major source of pollution because they burn coal to build things people need. Coal (carbon ore containing sulfur and other residues) often gives off sulfur dioxide when it’s burned. Sulfur dioxide (SO2) is a pollutant because it irritates humans lungs and poisons plants. In areas where factories produce a high
amount of sulfur dioxide, young people experience high rates of asthma.
1. What makes up SO2? Draw the lewis structures for each case below.
Sulfur, S
SO
SO2
SO3-2
2. Explain how sulfur dioxide (SO2) does not seem to follow the typical rules of bonding like SO. What
are the properties that make it bond in a way that does not follow expected patterns?The good news is that factories can use straightforward chemistry to clean the air. First, the factory can spray the toxic smoke down with a solution of calcium called limestone water. These sprayers, called “scrubbers,” create calcium sulfite “sludge” through this reaction: SO2(gas) + CaO (mineral suspended in water) → Ca(SO3) (sludge) Then, oxygen is forced through the “sludge”, resulting in this reaction:
CaSO3+ O2 → Ca(SO4) This combination could benefit manufacturers because they can sell the resulting Ca(SO4--) -- called gypsum to construction companies who can use it to make drywall boards used in buildings.
4. Are these chemical transformations possible, following the laws of conservation of matter? Is this reaction balanced or not? __________________ Show how you figured it out in the space below using any method.
SO2+ CaO → CaSO3
5. Balance this chemical reaction to make gypsum.
CaSO3+ O2→ CaSO4
The chemical reaction presented is appropriately balanced. The correct answer is:
CaO + 2SO2 = CaSO3 + O2.
Accordingly, 2 molecules of calcium sulfite (CaSO3) and 1 molecule of oxygen (O2) are formed for every reaction between 2 molecules of sulphur dioxide (SO2) and 2 molecules of calcium oxide (CaO).
The equation demonstrates that both sides of the reaction have the same amount and kind of atoms.An illustration of a redox (oxidation-reduction) process is this one. From the +4 oxidation state in SO2 to the +4 oxidation state in CaSO3, sulphur dioxide is being oxidised. While calcium oxide is being reduced from the +2 oxidation state in CaO to the +2 oxidation state in CaSO3, the opposite is happening.
The stoichiometry of the reaction, which denotes the proportions of reactants and products, is represented by the equation's balanced coefficients. Here, a reaction between two moles of SO2 and two moles of CaO results in two moles of CaSO3 and one mole of O2.
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Explain how you would write the expression for the following reaction:
2 X (g) + 3 Y (s) <---> Z (g) + 2 W (g)
The equilibrium expression of the reaction is;
[tex]K = [Z] [W]^2/[X]^2 [Y]^3[/tex]
What is the equilibrium expression?The equilibrium condition for a chemical reaction is represented mathematically by the equilibrium expression. It relates the reactant and product concentrations (or pressures) at equilibrium.
The law of mass action serves as the basis for the equilibrium expression.
From the reaction;
2 X (g) + 3 Y (s) <---> Z (g) + 2 W (g), the equilibrium expression would be;
[tex]K = [Z] [W]^2/[X]^2 [Y]^3[/tex] as derived from the reaction equation shown.
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Write the equation that relates the rate expressions for this reaction in terms of the disappearances of Cl2 and F2 and the formation of ClF3
The equations indicate that the rate of disappearance of Cl2 is half the rate of formation of ClF3, and the rate of disappearance of F2 is three times the rate of formation of ClF3.
The rate equation for the reaction between Cl2 and F2 to form ClF3 can be written in terms of the disappearance of Cl2 and F2 and the formation of ClF3. Let's denote the rate of disappearance of Cl2 as r1, the rate of disappearance of F2 as r2, and the rate of formation of ClF3 as r3.
Based on the stoichiometry of the reaction, we can write the balanced equation as:
Cl2 + 3F2 → 2ClF3
The rate expressions can be expressed as:
r1 = -d[Cl2]/dt
r2 = -d[F2]/dt
r3 = d[ClF3]/dt
The relationship between the rate expressions can be described by the reaction stoichiometry:
r1 = (1/2) r3
r2 = (3/2) r3
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A calorimeter consists of metal parts with a heat capacity of 925.0 J/K and 1100 grams of oil with specific heat 2.814J/g K. What is the heat capacity, in joules per degree, of the entire assembly?
The heat capacity of the entire assembly is 4019.4 joules per degree Kelvin.
To calculate the heat capacity of the entire assembly, we need to consider the heat capacities of the metal parts and the oil separately, and then sum them up.
The heat capacity of the metal parts is given as 925.0 J/K. This means that for every 1 degree Kelvin (or Celsius) increase in temperature, the metal parts can absorb or release 925.0 joules of heat.
The oil has a specific heat of 2.814 J/g K. This means that for every 1 gram of oil and 1 degree Kelvin increase in temperature, it can absorb or release 2.814 joules of heat.
Given that there are 1100 grams of oil in the calorimeter, we can calculate the heat capacity of the oil as follows:
Heat capacity of oil = specific heat of oil × mass of oil
= 2.814 J/g K × 1100 g
= 3095.4 J/K
To find the heat capacity of the entire assembly, we sum the heat capacities of the metal parts and the oil:
Heat capacity of entire assembly = heat capacity of metal parts + heat capacity of oil
= 925.0 J/K + 3095.4 J/K
= 4019.4 J/K
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The temperature of a 150.0 g sample of aluminum rises from 25°C to 40°C after it has been
placed on a hot plate. Calculate how much heat was transferred, and state whether it was
gained or lost based on the sign of your answer.
Q=
Gained or Lost:
PLEASE HELP!!!!
Q = 2.0 x 10³ J
Explanation:Using the change in temperature, we can find the heat transfer.
Heat Transfer
An increase in temperature is caused by absorbing energy. This means that the aluminum must have absorbed energy in order to rise in temperature. Since energy is being absorbed, the Q-value should be positive.
The equation for heat transfer is:
Q = mcΔTIn this equation, Q is energy, m is mass, c is the specific heat, and ΔT is the change in temperature. Specific heat is a constant that every substance has that describes how much energy is needed to heat up the substance. These values can be found in a data table.
Solving for Q
To find Q, we can plug in the known values and solve. The question states that there are 150.0g of Al. The specific heat of Al is 0.897 J/g*C. Also, since 40-25 = 15, the change in temperature is +15°C.
Q = 150.0 * 0.897 * 15Q ≈ 2018.25 JSince this question is based on measured values, we need to round according to significant figures. Our answer should have 2 sig figs. This means the answer rounds down to 2000J; however, this only has 1 sig fig. So, we need to use scientific notation to write our answer.
Given that Q is positive, the aluminum gains 2.0 x 10³ J of energy.
Explain ocean currents and how density differences between HOT/COLD and SALT/FRESH affect them.
-for science
Density differences caused by temperature and salinity variations are fundamental drivers of ocean currents of seawater . Warm currents transport heat from the equator to higher latitudes, while cold currents transport cold water from higher latitudes to lower latitudes.
When seawater is heated, it expands and becomes less dense, causing it to rise. Conversely, when seawater cools, it contracts and becomes denser, causing it to sink. These density differences due to temperature variations create vertical movements in the ocean known as thermohaline circulation or convection currents. On the other hand, regions with high freshwater input from rivers or heavy precipitation have lower salinity, resulting in lower density. This lighter water tends to float on the denser seawater beneath it, leading to the formation of surface currents that transport water from areas of low salinity to areas of higher salinity. These ocean currents play a vital role in shaping global climate patterns and maintaining the balance of heat and nutrients in the ocean ecosystem.
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A balloon is filled to a volume of 2.20L at a temperature of 25.0*C. The balloon is then heated to a temperature of 51*C. Find the new volume of the balloon
The new volume of the balloon after heating it to a temperature of 51 °C is approximately 2.39 L.
What is the final volume of the balloon?Charles's law states that "the volume occupied by a definite quantity of gas is directly proportional to its absolute temperature.
It is expressed as;
[tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex]
Given that:
Initial temperature of gas T₁ = 25°C = (25.0 + 273.15) = KInitial volume of gas V₁ = 2.2 LFinal temperature T₂ = 51 °C = ( 51 + 273.15 ) = 324.15 KFinal volume V₂ = ?Substituting the given values and solve for V₂:
[tex]V_1T_2 = V_2T_1\\\\V_2 = \frac{V_1T_2}{T_1} \\\\V_2 = \frac{2.2\ *\ 324.15}{298.15 }\\ \\V_2 = 2.39 \ L[/tex]
Therefore, the final volume is 2.39 litres.
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URGENT! What is the classification of benzyl benzoate? (Besides organic compound)
Answer:
Benzyl benzoate is a type of aromatic ester compound. It can also be classified as a benzyl compound, a benzoate ester, and a fragrant substance. In addition, it is commonly used as a solvent, a fixative, and a fragrance in various industries such as cosmetics, pharmaceuticals, and food.
Explanation:
PLEASE HELP THIS IS DUE IN 10 MORE MINUTES I WILL GIVE YOU 50 POINTS ANSWER THE QUESTIONS BELOW AND THE QUESTION IN THE IMAGE!
1. Light always travels in a straight line until something gets in its way.
True or False
2. Waves carry energy. The amount of energy they carry is related to their frequency and their amplitude.
True or False
3.The higher the frequency of a wave, the more energy, and the higher the amplitude of a wave, the more energy.
True or False
1. It is true that light always travels in a straight line
2. It is true that the amount of energy they carry is related to their frequency and their amplitude.
3. It is true that the higher the frequency of a wave, the more energy, and the higher the amplitude of a wave, the more energy.
What is a wave?A wave is an oscillation or disturbance that moves through a medium or space and transmits energy from one point to another without actually moving any physical objects.
Water waves, sound waves, light waves, and electromagnetic waves are just a few examples of the many varied shapes and settings in which waves can occur.
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When 345 g of water at 35.0 °C and 295 g of water at 63.0 °C are added together *
in a calorimeter, the temperature of the mixture becomes 46.9 °C. If the specific
heat capacity of water is 4.18 J/g °C, how many joules of energy are absorbed by
the calorimeter?
A. 1592 J
B 2690 J
C. 3000 J
D. 3458 J
The amount of energy absorbed by the calorimeter is 5597.92 J. Option A.
Energy transferUsing the formula:
Q = mcΔT
Where Q is the heat absorbed by the calorimeter, m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature.
Total mass of water = 345 g + 295 g = 640 gAverage temperature of the 2 water samples = (35.0 °C + 63.0 °C)/2 = 49.0 °CΔT = 46.9 °C - 49.0 °C = -2.1 °CNow, let's calculate the heat absorbed by the calorimeter:
Q = (640 g)(4.18 J/g °C)(-2.1 °C)
Q = -5597.92 J
Note that we have a negative value for Q because the calorimeter is absorbing heat from the water mixture.
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The single strand of nucleic acid shown is representative of
A). RNA
B). DNA
C). both RNA and DNA
D). protein
What is the mass, in grams, of a COCl2 sample that contains
1.55×1025 Cl atoms?
Answer:1.55x
Explanation: just do it
Krypton-79 has a half life of 35 hours. How many half lives have passed after 70 hours?
a.1
b.2
c.3
d.4
Answer: b.2
Explanation:
In which type of chemical reaction do two or more substances combine to form one substance?
Osynthesis
Odecomposition
single replacement
Odouble replacement
The type of chemical reaction where two or more substances combine to form one substance is known as a synthesis reaction.
In a synthesis reaction, multiple reactants react with each other to produce a single product.
Synthesis reactions are characterized by the formation of new chemical bonds and the creation of a more complex compound from simpler substances. This reaction type is commonly observed in various chemical processes and natural phenomena.
The general equation for a synthesis reaction is:
A + B → AB
In this equation, A and B represent the reactants, while AB represents the product. The reactants can be elements, compounds, or a combination of both. When they combine, their atoms or molecules rearrange and bond together to form the product.
Synthesis reactions are essential for the formation of many substances. For example, the combination of hydrogen and oxygen through a synthesis reaction produces water:
2H₂ + O₂ → 2H₂O
Another example is the synthesis of sodium chloride (table salt) from sodium and chlorine:
2Na + Cl₂ → 2NaCl
Synthesis reactions are also prevalent in organic chemistry, where complex molecules are formed by combining simpler organic compounds.
Overall, synthesis reactions play a fundamental role in chemistry, contributing to the formation of new substances and the understanding of chemical processes.
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1. What type of organic compounds are the reactants in an esterification reaction?
Esterification is the process that turned salicylic acid and acetic acid into acetylsalicylic acid.
Thus, The process of creating esters from carboxylic acids is known as esterification. When a carbon is linked to two oxygen atoms, an ester results from one of the oxygens being double-bonded to the carbon while the other oxygen is linked to another carbon.
The letter "R" stands for a carbon chain in the following generic formula for an ester.
Esterification occurs when a carboxylic acid reacts with an alcohol. This reaction can only occur in the presence of an acid catalyst and heat. It takes a lot of energy to remove the -OH from the carboxylic acid, so a catalyst and heat are needed to produce the necessary energy.
Thus, Esterification is the process that turned salicylic acid and acetic acid into acetylsalicylic acid.
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what is the concentration of H+ in pH 3 moldm^-3
Answer:
0.001 mol/dm^3.
Explanation:
The pH of a solution is defined as the negative base-10 logarithm of the concentration of hydrogen ions (H+) in moles per liter (M).
The pH of 3 moldm^-3 means the concentration of hydrogen ions in the solution is:
[H+] = 10^(-pH) mol/L
[H+] = 10^(-3) mol/dm^3
[H+] = 0.001 mol/dm^3
Therefore, the concentration of H+ in pH 3 moldm^-3 is 0.001 mol/dm^3.
2. Given the following sets of values, calculate the unknown quantity.
P=200kPa V= 0.602 L n = ? (g of CO₂) T = 311 K
ignore (g of CO2) in the question just find
the number of molecule
The approximate number of molecules in the given set of values is 2.823 × 10²² molecules of CO₂.To calculate the number of molecules (n) of CO₂, we can use the ideal gas law equation:PV = nRT
Where:
P = Pressure (in kPa)
V = Volume (in liters)
n = Number of moles
R = Ideal gas constant (8.314 J/(mol·K))
T = Temperature (in Kelvin),First, let's convert the pressure from kPa to atm (atmospheres) since the ideal gas constant is usually expressed in atm:
1 atm = 101.325 kPa
So, 200 kPa is approximately 1.973 atm.
Now, rearranging the ideal gas law equation to solve for n:
n = (PV) / (RT)
n = (1.973 atm * 0.602 L) / (0.0821 L·atm/(mol·K) * 311 K)
n ≈ 0.0469 mol
Since 1 mole of any substance contains Avogadro's number (6.022 × 10²³) of molecules, the number of molecules (N) can be calculated by multiplying the number of moles by Avogadro's number:
N = n * Avogadro's number
N = 0.0469 mol * (6.022 × 10²³ molecules/mol)
=N ≈ 2.823 × 10²² molecules
Therefore, the approximate number of molecules in the given set of values is 2.823 × 10²² molecules of CO₂.
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To which homologous series does CH₂CH₂ CH₂CH₂ belong?
The homologous series that CH₂CH₂ CH₂CH₂ belongs to is alkene.
What is homologous series?Homologous series is any series of aliphatic organic compounds whose members differ only in the addition of a CH₂ group.
The members of the homologous series are as follows;
AlkaneAlkeneAlkyneAlkene is an unsaturated, aliphatic hydrocarbon with one or more carbon–carbon double bonds.
According to this question, the above given compound is butene (a member of alkene) because it has four carbon atoms and 8 hydrogen atoms.
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Which of the following are not empirical formulas?
I. NO2
II. C6H6O2
III. C6H14N2O6
IV. PCl3
II (C6H6O2) and III (C6H14N2O6) are not empirical formulas.
What are empirical formulas?The empirical formula of a chemical compound are known to be the simplest whole number ratio of atoms present in a compound.
The empirical formula for C6H6O2 is CH3O and the emperical formula for C6H14N2O6 isC3H7NO3.
NO2 is the empirical formula for nitrogen dioxide. And PCl3 is the empirical formula for phosphorus trichloride.
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