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kaheart [24]
4 years ago
6

Which elements do hydrogen fuel cells combine to produce electricity? hydrogen and oxygen hydrogen and carbon hydrogen, oxygen,

and nitrogen hydrogen, carbon, and nitrogen
Physics
2 answers:
Leokris [45]4 years ago
8 0

Answer:

The answer to your question is, A: Hydrogen and Oxygen.

Explanation:

A fuel cell combines hydrogen and oxygen to produce electricity, heat, and water. Fuel cells are often compared to batteries. Both convert the energy produced by a chemical reaction into usable electric power.

<h2>Mark Brainliest, Please!</h2>
Ad libitum [116K]4 years ago
6 0
I think the correct answer would be the first option. The elements that hydrogen fuel cells need to produce electricity are oxygen and hydrogen. The hydrogen is broken into protons and electrons with the aid of a catalyst which them reacts with oxygen producing water, heat and electricity.
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Mkey [24]

Answer:

yes its true

Explanation:

4 0
3 years ago
Cuál es la diferencia entre fricción beneficiosa y perjudicial? Pon 5 ejemplos de cada uno.
Rus_ich [418]

Answer:

Difference is given below.

Explanation:

The main difference between beneficial and harmful friction is that beneficial friction is necessary for performing different activities while on the other hand, harmful effect of friction is destroy different parts of products and machines. examples of beneficial friction are walking, holding things, rubbing hands to produce heat, running etc whereas examples of harmful friction are destruction of sole, slipping, tearing of machine's part, Wet roads and Mudslides etc.

7 0
3 years ago
Consider the displacement vectors Ā=(i +6j)m, B = (3i– 7j)m,
andrezito [222]

Answer:

Dx = -0.5

Dy = -0.25

Explanation:

Two vectors are given in rectangular components form as follows:

A = i + 6j

B = 3i - 7j

It is also given that:

A - B - 4D = 0

so, we solve this to find D vector:

(i + 6j) - (3i - 7j) - 4D = 0

- 2i - j = 4D

D = - (2/4)i - (1/4)j

D = - (1/2)i - (1/4)j

<u>D = - 0.5i - 0.25j</u>

Therefore,

<u>Dx = -0.5</u>

<u>Dy = -0.25</u>

8 0
4 years ago
Biodiversity decline poses a problem in an ecosystem because
iragen [17]

Answer:

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3 0
3 years ago
Pls help me with this
Ilia_Sergeevich [38]
U is correct on the first one
6 0
3 years ago
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