Which sequence of words is in order of being able to carry the MOST electric
current to the LEAST? *
Resistor, insulator, conductor
Insulator, conductor, resistor
Conductor, insulator, resistor
Conductor, resistor, insulator
Answer: The order of being able to carry the MOST electric
current to the LEAST is Conductor, resistor, insulator
Explanation:
Resistor is a device which partially prevents the flow of electric current through it.
Insulator is a device which completely prevents the flow of electric current through it.
Conductor is a device which allows the flow of electric current through it.
Thus the sequence of words in order of being able to carry the MOST electric
current to the LEAST is Conductor , Resistor , Insulator.
Balance the following chemical equation by providing the correct coefficients
Answer:
2FeBr₃ + 3Na₂S → 1Fe₂S₃ + 6NaBr
Explanation:
SOLUTION :-
Balance the equation by hit & trial method , and you'll get the answer :-
2FeBr₃ + 3Na₂S → 1Fe₂S₃ + 6NaBr
VERIFICATION :-
In the reactant side of the equation :-
Number of Fe atoms = 2×1 = 2Number of Br atoms = 2×3 = 6Number of Na atoms = 3×2 = 6Number of S atoms = 3×1 = 3In the product side of the equation :-
Number of Fe atoms = 1×2 = 2Number of S atoms = 1×3 = 3Number of Na atoms = 6×1 = 6Number of Br atoms = 6×1 = 6Number of atoms of all elements are same in both reactant & product side of the equation. Hence , the equation is balanced.
Which is closer to the Sun—Neptune or the Earth?
O A.
The distance from the Earth to the Sun cannot be determined.
OB.
The Earth is closer to the Sun than Neptune is.
OC. They are the same distance from the Sun.
OD.
Neptune is closer to the Sun than the Earth is.
Answer: The earth is closer to the sun than neptune is
Explanation:
Answer:
The Earth is closer to the Sun than Neptune is.
Explanation:
pov
Assertion: The Nitrogen atom loses its 3 valence electrons to form its ion
Reason: Nitrogen ion is an anion
(a) Both assertion (A) and Reason (R) are true, and reason (R) is the correct explanation of assertion (A).
(b) Both assertion (A) and Reason (R) are true, but reason (R) is not the correct explanation of assertion (A).
(c) Assertion (A) is true, but reason (R) is false.
(d) Assertion (A) is false, but reason (R) is true
calculate the atomic mass of gallium if gallium has two naturally occurring isotopes with the following massess and natural abundances Ga-69 68.9256 amu 60.11% Ga-71 70.9247 amu 39.89
Answer: Atomic mass of gallium = 69.72304093 amu
Explanation:
We calculate the atomic mass of Gallium by using the Relative abundance of the isotopes.
Atomic mass =mass x Natural Abundance of Isotope 1 +mass x Natural Abundance of Isotope 2
(60.11/100 x 68.9256) + (39.89/100 x 70.9247)
= 41.43117816 + 28.29186283 = 69.72304093 amu
If the temperature of 1000 mL of gas is changed from -86oC to 101oC. What is the approximate final volume?
Answer:
2000 mL
Explanation:
We have the following data:
Initial volume: V₁ = 1000 mL
Initial temperature: T₁ = -86°C + 273 = 187 K
Final temperature: T₂= 101°C + 273 = 374 K
According to Charles' law, as the temperature of a gas is increased at constant pressure, the volume is increased. That is expressed mathematically as:
V₁/T₁ = V₂/T₂
Thus, we calculate the final volume V₂ as follows:
V₂ = V₁/T₁ x T₂ = (1000 mL)/187 K x 374 K = 2000 mL
Therefore, the final volume is 2000 mL.
Two groups of students were given the same test. One group of students studied for 2 hours and the other group of students did not study at all. The group of students who studied achieved higher grades on the test. What is the DEPENDENT variable?
Answer:
Grade achieved is the dependent variable in the study.
Explanation:
A variable in any research or study is any property, characteristic, number, or a quantity which shows variability or change in its value i.e. it increases or decreases over time, depending on the treatment conditions.
There are two types of variables: Dependent variable and Independent variable.
An independent variable does not depent on any factor for its value or result, rather, a change units value brings about a change in the dependent variable.
A dependent variable is the variable which depends on some factor which the researcher controls. Any change made on the factor by the researcher would bring about a change on the dependent variable.
For example, in the given example above, studying habit affects academic performance. If a student studies more, his/her academic performance will improve as they will achieve higher grades. On the other hand, if a student fails to study, their academic performance will not show any improvement when compared to the group of students who studied. Thus, grade improvement depends on studying habit.
Therefore, grade obtained is the dependent variable in the study.
What happens inside an air-filled balloon is squeezed on all sides?
O The air molecules move more slowly.
O The air molecules move farther apart.
O The air molecules move closer together.
O The air molecules remain in the same place.
Answer: The air molecules move closer together.
Explanation:
A 50,000 g septic tank reading reports that methane gas bubbles are present with a concentration of 17 ppm
Answer:
[tex]m_{solute}=0.85g[/tex]
Explanation:
Hello there!
In this case, according to the given information for the parts per million of methane in this solution, it is possible for us to first write the equation for this unit of concentration as shown below:
[tex]ppm=\frac{m_{solute}}{m_{solvent}} *1x10^6[/tex]
In such a way, since the septic tank has a mass of 50,000 g, the mass of methane into it is calculated as shown below:
[tex]m_{solute}=\frac{ppm*m_{solvent}}{1x10^6}[/tex]
Now, we plug in the numbers to obtain:
[tex]m_{solute}=\frac{17*50000g}{1x10^6}\\\\m_{solute}=0.85g[/tex]
Regards!
Define Acid and alkalis
Answer:
mark me brainliest
Explanation:
An acid is a substance that has a pH lower than 7. For example, hydrochloric acid, sulphuric acid, citric acid, ethanoic acid (vinegar). A base is a substance that neutralises an acid – those that dissolve in water are called alkalis. An alkali is a soluble substance with a pH higher than 7.
Answer:
The chemical which give hydrogen ion when dissolve in water is called acid.for example:HCL,HNO3,H2SO4 etc.
The bases that dissolve in water and produce hydroxyl ions are called alkalis.for example:NaOH,KOH etc.
Explanation:
In the lab jill mixed 3 gases together. The resulting pressure was 930 mmHg carbon dioxide had a partial pressure of .70 atm and oxygen had a partial pressure of 680 mmHg. What is the partial pressure of nitrogen in kPa
Answer:
26.2kPa is the partial pressure of nitrogen
Explanation:
Assuming the partial pressure of Carbon dioxide is 0.070atm
The total pressure of a mixture of 3 gases (CO2, O2 and N2) is:
Total pressure = Partial pressure CO2 + Partial pressure O2 + Partial pressure N2
0.070atm CO2 are:
0.070atm * (760mmHg / 1atm) 53.2mmHg
Replacing:
930mmHg = 53.2mmHg + 680mmHg + Partial pressure N2
Partial Pressure N2 = 196.8mmHg
In kPa -101.325kPa = 760mmHg-
196.8mmHg * (101.325kPa / 760mmHg) =
26.2kPa is the partial pressure of nitrogenbeta-plus decay sodium protons and neutrons
Answer:
(β-decay) is a type of radioactive decay in which a beta particle (fast energetic electron or positron) is emitted from an atomic nucleus, transforming the original nuclide to an isobar of that nuclide. For example, beta decay of a neutron transforms it into a proton by the emission of an electron accompanied by an antineutrino; or, conversely a proton is converted into a neutron by the emission of a positron with a neutrino in so-called positron emission.
Explanation:
Answer:
Beta decay occurs when, in a nucleus with too many protons or too many neutrons, one of the protons or neutrons is transformed into the other. ... In beta plus decay, a proton decays into a neutron, a positron, and a neutrino: p Æ n + e+ +n.
Explanation:
4.A high-quality sleeping bag will keep you warm even during a winter camping trip high in the mountains. How do you stay warm when the air around you is very cold?
A. The sleeping bag produces thermal energy that keeps you warm.
B. The sleeping bag transfers thermal energy from the air to your body.
C. The sleeping bag slows the transfer of thermal energy produced by your body into the air.
D. The sleeping bag increases the production of thermal energy by your body
Answer:
I think it's C
Explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
[tex] \underline{ \text{QUESTIONS}} : [/tex]
1. How does nephron separate urine from blood ?
2. What properties of metals help to make them the following ? [ Mention two points for each ]
i. Utensils to cook in it
ii. Conducting wire
iii. Body of aeroplane
- Plagiarised / Random answers will be reported !
Answer: Hope This Helps
Explanation:
1: The nephrons contain a filter called the glomerulus. The fluid that is filtered from the blood then travels down through a tubule. The tubule adjusts the level of wastes that will leave the body in the urine.
(I dont know the second part so hope this half answer helps a little bit. Sorry.)
[tex]\huge\boxed{\boxed{\underline{\textsf{\tt{❦ ANSWER ➳}}}}}[/tex]
╭⋟─────────────
✍ 1. ➺ Nephrons have filters known as glomerulus (they are a cluster of very thin-walled blood capillaries). Glomerulus filters our blood & then removes any unwanted waste materials. Now, this filtrate which is removed out from the blood gets collected & filtered again in the Bowman's Capsule & tubules from where nephrons remove glucose, amino acids & a major amount of water. The urine forming in each kidney now enters a long tube (ureter) where urine passes & gets stored in the urinary bladder. Urine gets passed out of the body through the urethra.
ღ ____________________ ღ
✐ 2. i) Property of metals ⎆ Good conduction of heat.
ii) Property of metals ⎆ Good conduction of electricity & ductility.
iii) Property of metals ⎆ Malleability & ductility.
───────────────⋞╯
⁺˚*･༓☾✧.* ☽༓･*˚⁺‧
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐
do we need nuclear energy to stop climate change?
Answer:
Hey mate......
Explanation:
This is ur answer.....
To combat climate change, the world must rapidly reduce its dependency on fossil fuels to reduce greenhouse gas emissions. Nuclear energy is low-carbon and can be deployed on a large scale in the time frame required, supplying the world with clean and affordable electricity.
Hope it helps!
Brainliest pls!
Follow me! :)
Which is more likely to melt a cup of ice - a spoonful of boiling water, or a cup of room-temperature
Answer:
boiling water
Explanation:
its hotter
HELP ASAP
Explain the factors that affect the sounds we hear. Support your response with evidence and scientific reasoning including relationship between wave properties and sound characteristics you explored in this . In your response you should each of the following terms:
Loudness/Volume Pitch Frequency Amplitude
Answer:
The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB) Intensity of sound results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
Explanation:
What's the difference between a wax crayon and a plastic crayon?
Answer:
Crayons use wax and Oil pastels use non-drying oil and wax. Besides the composition of the colours, there is a huge difference in how a wax crayon and an oil pastel works. ... Crayons, don't colour your hands. Well, most crayons don't.
Explanation:
what's crayons are softer and they smudge because they have more oil pastels in them plastic crayons are harder and they don't intend to smudge.
WHAT MEASURING EQUIPMENT DID LEANNE USE TO GET HER RESULTS
Answer:
Thietbi od
Explanation:
Giving Bainliest!!!!!
In 2-3 sentences, describe the basic properties of waves including frequency, amplitude, wavelength, and speed.
Answer:
frequency: This is the number of oscillations in one second or number of complete wavelengths produced in one second.Amplitude: This is the maximum displacement of a particle from its mean position.Wavelength: This is the distance between one crest and another or one trough and another.Speed: This is the distance a wave travels in a given amount of time.Which statement best explains what causes the phase change from solid ice to liquid water?
Answer:
The melting point is the temperature at which a solid changes into a liquid. The melting point of a solid is the same as the freezing point of the liquid. At that temperature, the solid and liquid states of the substance are in equilibrium. For water, this equilibrium occurs at 0°C.
Explanation:
Answer: Heat or pressure causes the phase change from solid ice to liquid water.
PLEASEEEE HELP :')
''If 5.6 mole of calcium metal is reacted, how many grams of calcium phosphide will form?'
Answer:
340 grams Ca₃P₂ (2 sig. figs.)
Explanation:
3Ca + 2P => Ca₃P₂
5.6 mole + excess => ? grams
Convert the 'known' to a coefficient of 1 by dividing all coefficients by 3.
=> Ca + 2/3P => 1/3Ca₃P₂
From the above, 1 mole of Ca => 1/3 mole Ca₃P₂
∴ 5.6 mole Ca in an excess of P => 1/3(5.6 mole) Ca₃P₂
=> 1.8666 mol Ca₃P₂ (calculator answer) ≅ 1.9 mol Ca₃P₂
=> 1.9 mole x 182 g Ca₃P₂/mol Ca₃P₂ = 339.73333 grams Ca₃P₂
≅ 340 grams Ca₃P₂ (2 sig. figs.)
Write the electronic configuration of the following element or ion and circle on their valance electrons
A.27 Al =
13
B. 31p-3
15
please answer my question now ! I will give you a Brinalist
1s2,2s2,2p6
Explanation:
electron arrangements
2Fe +3S= Fe2S3 how many grams of sulfur are involved in this reaction if 95 grams of iron are needed to react with sulfur
Answer:
83 g
Explanation:
Step 1: Write the balanced equation
2 Fe + 3 S ⇒ Fe₂S₃
Step 2: Calculate the moles corresponding to 95 g of Fe
The molar mass of Fe is 55.85 g/mol.
95 g × 1 mol/55.85 g = 1.7 mol
Step 3: Calculate the moles of S needed to react with 1.7 moles of Fe
The molar ratio of Fe to S is 2:3. The moles of S needed are 3/2 × 1.7 mol = 2.6 mol
Step 4: Calculate the mass corresponding to 2.6 moles of S
The molar mass of S is 32.07 g/mol.
2.6 mol × 32.07 g/mol = 83 g
What mass of LiOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of 11.33?
Execute Order 66________________
The mass of LiOH needed to make a 300 mL of a solution with a pH of 11.33 is 0.015 g
We'll begin by calculating the pOH of the solution.
pH = 11.33
pOH =?
pH + pOH = 14
11.33 + pOH = 14
Collect like terms
pOH = 14 – 11.33
pOH = 2.67 Next, we shall determine the concentration of hydroxide ion, OH⁻pOH = 2.67
Concentration of hydroxide ion [OH⁻] = ?pOH = –Log [OH⁻]
2.67 = –Log [OH⁻]
–2.67 = Log [OH⁻]
Take the as antilog of –2.67
[OH⁻] = antilog (–2.67)
[OH⁻] = 0.0021 MNext, we shall determine the concentration of LiOH.LiOH(aq) —> Li⁺(aq) + OH⁻(aq)
From the balanced equation above,
1 mole of LiOH contains 1 mole of OH⁻
Therefore,
0.0021 M LiOH will also contain 0.0021 M OH⁻.
Next, we shall determine the mole of LiOH in the solution.Molarity of LiOH = 0.0021 M
Volume = 300 mL = 300 / 1000 = 0.3 L
Mole of LiOH =?Mole = Molarity × volume
Mole of LiOH = 0.0021 × 0.3
Mole of LiOH = 0.00063 moleFinally, we shall determine the mass of LiOH needed to prepare the solution.Mole of LiOH = 0.00063 mole
Molar mass of LiOH = 7 + 16 + 1 = 24 g/mol
Mass of LiOH = ?Mass = mole × molar mass
Mass of LiOH = 0.00063 × 24
Mass of LiOH = 0.015 gTherefore, the mass of LiOH needed to prepare the solution is 0.015 g
Learn more: https://brainly.com/question/5851093
What are the two kinds of ways matter changes?
C2H, (g)+ 502 (g) 3C02(g) + 4H2O(g)
What reacts with the hydrocarbon fuel in a combustion reaction?
Why is this conveyor important for Earth?
Answer:
.
Explanation:
Answer:
The great ocean conveyor plays a highly significant part in the climate of the planet. It transports heat to the Polar Regions, for example. In doing so, the amount of ice that can be formed in these regions is limited.
En una estructura de concreto cuyo peso es de 8500 n se apoyo sobre un area de 25cm2,hallar la presion ejercida sobre su base
Respuesta:
340 N/cm²
Explicación:
Paso 1: Información provista
Peso de la estructura (F): 8500 Newton
Area superficial (A): 25 cm²
Paso 2: Calcular la presión (P) ejercida por la estructura de concreto sobre su base
La presión es igual al cociente entre la fuerza ejercida y la superficie sobre la que se aplica.
P = F/A
P = 8500 N / 25 cm² = 340 N/cm²