Answer:John Dalton
Explanation:
Whats faster light or sound? PLEASE HELPY ME
Answer:
The answer is that light is faster than sound.
Explanation:
A good example is of lightning and thunder during a thunderstorm.
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Volcanic island acres are associated with which type of plate boundary
hi can someone help me with these 2 :)
Answer:
a and d
Explanation:
During the process of photosynthesis, green implants produce
a. sunlight
b. methane
c.nitrogen
d. sugar
Fill in the coefficients that will balance the following reaction:
(Note: Use 1 as coefficient where appropriate.)
_C3H7OH + _O2 → _CO2 + _H2O
The number of Oxygen atoms in both of glucose and fructose is 6 atoms, which means 12 in total ,but the sucrose is 11 atoms of Oxygen although it's composed of fructose and glucose, the question where the atom number 12 go ?
Answer:
The atom number 12 of oxygen contributes to the formation of water (H2O) during the process of forming sucrose.
Explanation:
Sucrose is a dissacharide carbohydrate i.e it contains two simple sugars or saccharides. The two simple sugar monomeric components of sucrose are glucose and fructose. As rightly stated in this question, the number of Oxygen atoms in both of glucose and fructose is 6 atoms respectively, which means 12 in total, however, the sucrose molecule has 11 atoms of oxygen meaning 1 oxygen atom is missing.
Sucrose is formed from glucose and fructose by a process called DEHYDRATION REACTION. A dehydration reaction means that one MOLECULE OF WATER IS LOST in order to form a glycosidic linkage/bond that joins fructose and glucose monomeric sugars together in the sucrose molecule. Two hydrogen atoms and ONE OXYGEN atom from the supposed 12 is used to form the WATER MOLECULE.
Why is it important to classify living organisms? The DNA of organisms may be more easily analyzed. Organisms may survive longer if they are classified. Scientists may study and discuss organisms more easily. Classifying is needed before scientists may make observations.
Answer:
All living things are organized into groups by scientists as they are identified. Living things organized into particular groups have common characteristics. Overall, the reason scientists classify living things is to understand the relationships between different organisms
Explanation: Naruto
Answer:
C
Explanation:
look at the attachment
What is the coefficient for titanium tetrachloride when the equation below is balanced?
TiCl4+H2O=TiO2+HCl
TiCl₄+2H₂O⇔TiO₂+4HCl
The coefficient for titanium tetrachloride = 1
Further explanationEqualization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:
1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.
2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product
3. Select the coefficient of the substance with the most complex chemical formula equal to 1
Reaction
TiCl₄+H₂O⇔TiO₂+HCl
give coefficient
TiCl₄+aH₂O⇔bTiO₂+cHCl
Ti, left=1, right=b⇒b=1
Cl, left=4, right=c⇒c=4
H, left=2a, right=c⇒2a=c⇒2a=4⇒a=2
O, left=a, right=2b⇒a=2b⇒2=2.1⇒match
Balanced equation :
TiCl₄+2H₂O⇔TiO₂+4HCl
Answer:
the coefficient of TiCl4 would be 1
numerical Through the two ends of glass-tube of lenght 2 meters, hydrogen chloride and ammonia gases are allowed to enter.At what distance ammonium chloride will first appear?
Answer:
81cm is the answer.
Explanation:
Let X be the length from the HCl end, and therefore, (2-x) from the other end.
For X length, rate of diffusion is :
dx/dt=P A/(Square root of 36.5T
d(2−x)/dt=PA/(square root of 17 T
Dividing both we get;
X/(2−x)= square root of 36.5/17
X=2/2.466=0.81 or81cm
If the 50 kg object slows down to have a velocity of 1 m/s, how much kinetic energy does it have ?
Answer:25J
Explanation: KE:1/2mv^2=KE=25x1=25J
Why do we dream? Help me Please;)
Answer:
Explanation:
we dream because when our bodies are taking memories into long term, the memories from that day or the day before collide and make dreams. that is why they resemble things that have happened to us.
Answer:
One widely held theory about the purpose of dreams is that they help you store important memories and things you've learned, get rid of unimportant memories, and sort through complicated thoughts and feelings. Research shows that sleep helps store memories.
The brain is so active when we dream that it is virtually indistinguishable from a brain in the waking state. Even so, the chemistry of it is entirely rewired when we sleep. Many scientists attribute this to the reason dreams are so strange and bizarre.
Explanation:
The solubility table helps predict the products of what kind of reactions?
A. Single-replacement
B. Double-replacement
C. Decomposition
D. Synthesis
SUBMIT
Answer:
B. double replacement
Explanation:
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ANSWER THIS TO BE MARKED BRAINILEST Water in a beaker measures 250 milliliters. A rock is completely submerged in the water. The water level now reads 375 milliliters. What is the volume of the rock in cubic centimeters? Explain your answer
Answer:
125 cubic meters
Explanation:
Subtract 375-250=125 cubic meters
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Which contribution to the development of atomic theory was the most impactful?
Answer:
Who contributed the most to the atomic theory?
After Democritus' discovery, new evidence would be found that would eventually lead to the modern atomic theory. John Dalton, J.J. Thompson, Ernest Rutherford, Niels Bohr, James Chadwick and Ernest Schrodinger each contributed greatly to the modern atomic theory by finding the actual evidence.
Explanation:
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what is the lewis dot structure of CH2OH and N2O4
Are cyclops heterotrophic or autotrophic?
Cyclops are heterotrophic
Uranium-235 undergoes the following fission process after
absorbing a neutron:
235 U +in+Kr + 14 Ba + xon
What is the value of x?
x =
Your answer should be a number.
The value of x = 3
Further explanationFusion and fission reactions are reactions involving atomic nucleus reactions
Fission reaction is a nucleation division reaction by firing a particle usually neutron so that it gets smaller particles of atomic nuclei.
Fission of Uranium-235
[tex]\tt ^1_0n+^{235}_{92}U\rightarrow ^{141}_{56}Ba+^{92}_{36}Kr+3^1_0n[/tex]
In this reaction, the sum of the mass number and atomic number of the elements involved in the reaction will be equal
atomic number left : 0+92=92
atomic number right : 56+36=92
mass number left : 1+235=236
mass number right : 141+92+3=236
The value of x in the fission process of uranium has been 3.
Fission reaction has been the nuclear reaction resulting in the breaking of the element into smaller substituents. The fission of uranium has been:
n + U [tex]\rightarrow[/tex] Ba + Kr + n
In the given fission reaction, the mass number of the atoms on the right and left of the reaction has to be equal. The mass number has been;
235 + 1 = 141 + 92 + x
236 = 233 + x
x = 236 -233
x = 3
The value of x in the fission process of uranium has been 3.
For more information about the fission process, refer to the link:
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What is the independent variable when testing to see how the viscosity of a liquid affects its flow rate
Answer:
Viscosity
Explanation:
The viscosity of the liquid is the independent variable. The flow rate is the dependent variable in this hypothesis.
The statement given is called the hypothesis. It is a form of scientific guess into a phenomenon.
An independent variable is the cause. A dependent variable is the effect produced. In this hypothesis, the cause of the various flow rate of the liquid is the viscosity. It is therefore the independent variable. The flow rate is the dependent variable.Identify ALL the possible mol ratio from
this balanced equation:
Answer:
[tex]\frac{1 mole of N_{2} }{3 moles of H_{2} }[/tex]
Explanation:
The equation of the reaction:
Nitrogen gas N₂ reacts with Hydrogen as H₂ to produce ammonia NH₃;
N₂ + H₂ → NH₃
The balanced equation is ;
N₂ + 3H₂ → 2NH₃
The mole ratio is the ratio of the coefficients of the combining reactants;
1 mole of N₂ combines with 3 mole of H₂;
So;
[tex]\frac{1 mole of N_{2} }{3 moles of H_{2} }[/tex]
Question 2 (1 point) The chemical formula for an ionic compound represents the a b number of ions in each molecule. total number of ions in the crystal lattice. number of atoms in each molecule simplest ratio of ions that results in an electrically neutral compound.
The chemical formula for an ionic compound represents the simplest ratio of ions that results in an electrically neutral compound. That is option D.
What is an ionic chemical compound?An ionic chemical compound is defined as the type of chemical compound that contains both the oppositely-charged ions of a metal and a nonmetal are attracted reacting with each other to form an ionic bond.
When represented as a chemical formula, it is the simplest ratio of ions that results in an electrically neutral compound.
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An element's ability to react with acid is an example of a
A pure substance.
B physical property.
C chemical property.
D melting point.
Answer:
it's chemical property
Explanation:
i took quiz
What is the independent variable based on the hypothesis below?
"If acid rain is in water, then fish populations will increase"
Answer:
Acid rain
Explanation:
The independent variable in the hypothesis statement is the acid rain. An independent variable is usually the cause in an experiment.
This variable give rises to the effects observed as the dependent variable.
In the presence of the acid rain, the fish population will increase.
The dependent variable is the fish population or number of fishes.
The independent variable is the acid rain as it is the cause of the effect observed on the fish population.
A reddish layer of rust can form on old iron nails and bikes. In this chemical reaction, iron reacts slowly with oxygen in the air. The chemical name for rust is iron oxide. What are the reactant(s) and product(s) of this reaction? Write down the equation, in words, for the formation of rust.
Answer:
Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:
Explanation:
iron + oxygen → iron oxide
Answer:
Iron slowly reacts with oxygen and forms rust. In this case, the reactants are iron and oxygen. The product is rust, or iron oxide. The chemical equation looks like this:
iron + oxygen → iron oxide
Explanation:
This was the answer straight from Plato. I hope that this helped you, please mark me the brainiest, like and rate my answer if it did! :)
Marissa blows up balloons for a party. She decides how big or small to make each balloon. Why does the air she blows into each balloon take up all the space inside the balloon
why does the proton determine the identity of an atom
Answer:
Protons contribute to the mass of an atom and provide the positive charge to the nucleus. The number of protons also determines the identity of the element. ... Since the atom is electrically neutral, the number of electrons must equal the number of protons.
Explanation:
Explain how the forces involved in a car crash could lead to multiple cars coming to a complete stop. Use information from the article in order to answer this question. You should be answering in at least 2 complete sentences.
Answer:
Newton's First Law...
Explanation:
The only force that acts on the car is the sudden deceleration from v to 0 velocity in a brief period of time, due to the collision with another object. However, when viewing the total system, the collision in the situation with two cars releases twice as much energy as the collision with a wall
What type of reaction takes place when potassium iodide reacts with chlorine gas?
a
Double Replacement
b
Decomposition
c
Synthesis
d
Single Replacement
Answer:
The correct answer is - d. single replacement or displacement.
Explanation:
The displacement or replacement reaction is the reaction in which the less reactive molecule or element is replaced by the more reactive element or molecule in the reaction. If there is only one replacement occurs its termed as a replacement or single replacement reaction.
In this case, if chlorine gas passes through the water solution of KI (potassium iodide), solid iodine and KCl are produced by the displacement or replacement reaction. Here iodine is less reactive so replaced by the more reactive chlorine.
2KI(aq)+Cl2 (g)→2KCl(aq)+I2 (s)
When the following equation is balanced, the coefficients are __________. Al(NO3)3 + Na2S → Al2S3 + Na(NO3)
The balanced coefficients in the reaction are now; 2, 3, 1, 3.
A balanced chemical reaction equation is one in which the number of atoms of each element on the right hand side of the reaction equation is equal to the number of atoms of the same element on the left hand side of the reaction equation.
For the reaction show, the balanced reaction equation is; 2Al(NO3)3 + 3Na2S → Al2S3 +3 Na(NO3). The balanced coefficients in the reaction are now; 2, 3, 1, 3.
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What happens when the atoms of a substance are regrouped