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Allushta [10]
2 years ago
15

Which of these is the best argument for switching from combustion-powered cars to fuel cell cars in order to help the environmen

t?
They use hydrogen, which produces water vapor instead of CO2.
They conserve gasoline reserves so they can be burned in the future.
They decrease the money spent by consumers on transportation.
They decrease the reliance on other countries for non-renewable resources.
Chemistry
1 answer:
Virty [35]2 years ago
7 0
Hello User

Question: <span>Which of these is the best argument for switching from combustion-powered cars to fuel cell cars in order to help the environment?

Answer: </span><span>They use hydrogen, which produces water vapor instead of CO2.

Reason: This is the best argument because it is saying that pollution will go down if you use Combustion powered cars. It relates to any situation and all of the cars do this.

I hope I helped
-Chris</span>
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<span>Pitch is sometimes defined as the fundamental frequency of a sound wave (i.e. generally, the lowest frequency in a given sound wave). For most practical purposes, this is fine, and pitch and frequency can be thought of as equivalent. On the other hand, for most practical purposes, amplitude can be thought of as volume.However, technically, pitch (and volume) are human perceptions. Thus, our perception of pitch and volume are not solely based on frequency and amplitude respectively, but are based on a combination of both (and even other factors). Frequency overwhelming dictates perceived pitch, but amplitude also does have some small, small effect on our pitch perception, especially when it is very large. For example, a very loud sound can have a different <span>perceived </span>pitch than you would predict from its frequency alone.That all being said, usually these effects are negligible, and pitch can be thought of as equivalent to fundamental frequency.
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2 years ago
In a sample of solid ba(no3)2 the ratio of barium ions to nitrate ions is
Nata [24]
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Nitrogen gas and oxygen gas react according to the following equation: Energy + N2(g) + O2(g) Double arrow yields 2NO(g) Nitroge
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- increasing the concentration of N₂
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3 years ago
Which scientist arranged the elements in order of increasing atomic number, rather than increasing atomic mass? Antoine Lavoisie
Natalka [10]
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6 0
3 years ago
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How many moles of hydrogen are in 5.2 moles of C7H18
maksim [4K]
In one mole of C7H18 there are 18 moles of H (the number folowing the H)*
>> the ratio is 1:18

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>> the ratio is 5.2:x

Cross multiply the two ratios
1x = 18×5.2
x = 93.6 moles of H

>> In 5.2 moles of C7H18 there are 93.6 moles of H




* This isnt a rule that you can always use.
However to find the mole of a certain element in a certain molucle all you have to do is count how many moles of the element are present in the molecule.
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>> example2 >> CH3COOH ; [you add up all the moles of the same element]
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>> example3 >> Mg(OH)2 ; [you multiply whetever is in parenthesis by the number after it 2] 1 Mg , (1×2) 2 O and (1×2) 2 H
6 0
3 years ago
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