Explain how hydrogen fuel cells work, and why they provide a healthy, clean way to produce heat and electricity. (Site 1).

Answers

Answer 1

Answer:

As there are no moving parts, fuel cells operate silently and with extremely high reliability. Due to their chemistry, fuel cells are very clean. Fuel cells that use pure hydrogen fuel are completely carbon-free, with their only byproducts being electricity, heat, and water.

Answer 2

Answer:

As there are no moving parts, fuel cells operate silently and with extremely high reliability. Due to their chemistry, fuel cells are very clean. Fuel cells that use pure hydrogen fuel are completely carbon-free, with their only byproducts being electricity, heat, and water.


Related Questions

3. The organelle that releases large amounts of energy to assist active transport in cells ?​

Answers

Answer:

The main function of the mitochondria is to provide energy for cellular activity by the process of aerobic respiration.

Explanation:

glucose is broken down in the cell's cytoplasm to form pyruvic acid, which is transported into the mitochondrion

Maxine miles runs a marathon in 2 hours and 40 minutes. most of the atp for this activity is supplied by:

Answers

Maxine miles runs a marathon in 2 hours and 40 minutes. Most of the ATP for this activity is supplied by AEROBIC glucose breakdown. ATP is the energy coin of the cell.

Cellular respiration refers to the metabolic processes by which aerobic cells produce ATP by using the energy stored in the chemical bonds of foods (e.g., glucose) and oxygen.

Muscle cells can produce ATP by both cellular respiration (aerobic conditions) and acid lactic fermentation (anaerobic conditions).

Acid lactic fermentation is a less efficient pathway than cellular respiration, but cellular respiration is slower than fermentation, thereby muscle cells use this pathway (acid lactic fermentation) when there is not enough oxygen in the body.

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In an energy pyramid only about
of energy is transferred from one level to the next
get the most energy, while
consumers get
the least. This is because organisms use the energy during growth, metabolism, and cellular processes, much of the energy is lost in in the form of

Answers

Answer:

Heat

Explanation:

Energy that is not use in an ecosystem is eventually lost as heat. Energy and nutrient are passed around through the food chain, when one organism eat another organism any energy remaining in a dead organism is consumed by decomposes.

which division of the ans is referred to as the rest and digest division?

Answers

It is the Parasympathetic Division

During which phase(s) of mitosis are structures like the one shown in Figure 10–2 visible?

Answers

Answer:

Prophase

Explanation:

Not 100% sure though.

Answer:

Prophase

Explanation:

During prophase, chromosomes condense which is why it looks like that

Would a plant be able to survive if the ground tissue was damaged? Explain your answer.

Answers

Given what we know, we can confirm that with damaged ground tissue, a plant will most likely not be able to survive.

What we know about ground tissues in plants.The ground tissue forms an abundant part of all plant tissues. This tissue includes all plant tissue that is neither vascular nor dermal.This means that ground tissue covers a wide variety of functions. Two primary and important functions are the storage of sugar and water.

Therefore, given the vital role of this tissue in plants and its function in storing "food" and water, we can confidently say that a plant with damaged ground tissue will not be able to survive for long.

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Answer:

No, it would not because...

Explanation:

A plant without ground tissue would not be able to survive.  The ground tissue serves all types of functions, including photosynthesis, storage, and support. Without any of these functions, a plant can’t grow nor get the nutrient it needs to survive.

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Why must the number and type of atoms be the same in the products of a chemical reaction as in the reactants?

Answers

Because atoms are rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products.

hope it helps

Which of these solutions is the best way to help a city as its population grows
and its air becomes more polluted?
O A. Invest in urban sprawl to better disperse the pollution.
OB. Invest in alternative energy sources to reduce emissions.
O C. Reduce road construction to dissuade new residents.
O D. Reduce air-quality regulations so businesses can grow unimpeded.

Answers

Answer:

B. Invest in alternative energy sources to reduce emissions.

Explanation:

The best way to help a city as its population grows, and its air becomes more polluted, is to invest in alternative energy sources to reduce emissions. The correct option is B.

What is pollution?

Pollutants are the name for these dangerous substances. Natural pollutants include volcanic ash, for example. They can also be brought by human activities, such as factory runoff or waste.

Air pollution is caused by solid, liquid, and gaseous pollutants. These gases and particles can be produced by factories, volcanoes, wildfires, dust, pollen, and vehicle and truck emissions.

To stop pollution, we must use alternative energies that do not cause pollution.

Thus, the correct option is B. Invest in alternative energy sources to reduce emissions.

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What is the upper section of the pharynx which contains the adenoids?

Answers

Answer:

a. Nasopharynx

Explanation: is correct. post protected

cultivation of plant populations of a single species​

Answers

Single species population-dynamic models for annuals with dormant seeds growing seasonal

Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such as moving muscles.

Explain the energy transformation in this process.

A. Chemical energy from broken bonds is transformed into mechanical energy for muscles.
B. Mechanical energy from broken bonds is transformed into chemical energy for muscles.
C. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
D. Heat energy from broken bonds is transformed into electrical energy for muscles.

Answers

no problem que me digan si no te quiero

Chemical energy from broken bonds is transformed into mechanical energy for muscles. The correct option is A.

What is chemical energy?

Chemical energy is the energy held in atom as well as molecule bonding.

Chemical energy can be located in things like batteries, biomass, oil, natural gas, and coal.

For instance, when humans burn wood in a fireplace or gasoline in a vehicle's engine, chemical energy is transformed into thermal energy.

Chemical energy, such as that held in the bonds of atoms and molecules, is stored energy. As a result of a chemical process, this energy is released.

Many chemical bonds throughout the body break during respiration, releasing energy. The movement of muscles is one activity that uses this energy.

Broken bonds' chemical energy is converted into mechanical energy for muscles.

Thus, the correct option is A.

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The diagram above shows the cell cycle. As you can see from the diagram, the cell spends most of the time in _______________________ during which it undergoes rapid growth and the DNA is replicated in order to prepare for Mitosis

Answers

Answer:

Interphase

Explanation:

Interphase is the phase in the cell cycle in which rapid growth occurs and DNA is replicated.

a critical event in the death of a cell is caused by

Answers

Answer:Apoptosis and autophagy are both forms of programmed cell death. Necrosis is the death of a cell caused by external factors such as trauma or infection and occurs in several different forms.

Explanation:

How does diffusion occur without any Energy?

Answers

Answer:

it moves from a stronger region of concentration to a weaker region of concentration so therefore does not call for or require energy

PLZ HELP how does the advancement of technology affect scientific models?​

Answers

Answer:

Science and technology help each other advance. Scientific knowledge is used to create new technologies. New technologies often allow scientists to explore nature in different ways and make new discoveries. Examples of technologies that have helped science advance include the telescope and microscope.

Explanation:

hope it will help.....

What is the function of the nose?

To warm the air
To humidify the air
To filter the air
*All of the above

Answers

Answer:

d. All of the above

Explanation: Is the correct answer!!  and post protected

All above! All the answers are correct

The prokaryotic group that tends to inhabit extreme environments belongs to ________. A. Bacteria B. Euglena C. Protista D. Archaea

Answers

Answer:

D. Archaea

Explanation:

The prokaryotic group that tends to inhabit extreme environments belongs to Archaea.

The Archaea are prokaryotes that inhabit extreme environments, such as inside volcanoes, while Bacteria are more common organisms, such as E. coli.

Hope this helps :)

BRAINLIEST TO CORRECT ANSWER​

Answers

I’d say the answers B

Answer:

C (pictures a and b)

Explanation:

An element contains only 1 type of atom.

which soil composition would be the best choice for lining a landfill?

Answers

Answer:

Loamy or silty soils that are free of large stones and excess gravel are the best cover for a landfill. Clayey soils may be sticky and difficult to spread; sandy soils are subject to wind erosion.

Explanation:

ANSWER FOR BRAINLIEST!!!

Answers

i think number 1 letter A

ANYONE FROM K12 KNOW THE ANSWERS TO THIS PART OF THE 3.25 MITOSIS LAB??? I NEED HELP (no links)

Answers

Answer:

1. provide the correct order for the stages of mitosis

How many codons are needed for 3 amino acids?

Answers

Answer:

3 codons are needed for 3 amino acids

9 is the right answer

how would you differentiate between pollen cells and algae cells

Answers

Algae live in water, and their tails help them swim. Pollen grains have spikes that help them stick to insects such as bees. (hopefully right)

mention any 2effect of drug substance​

Answers

Nausea and Abdominal Pain

the united states national grid is based on the universal transverse marcator coordinayte system true or false

Answers

Answer:

true

Explanation:

Yah it’s true, USNG relies on the familiar Universal Transverse Mercator

place each of the labels in the proper position to denote whether they would pass through the filtration membrane or not.

Answers

The labels that will pass through the filtration membrane are water, glucose, and sodium.

The labels that will not pass through the filtration membrane are red blood cells, lymphocytes, antibodies, and platelets.

The filtration membrane is a microporous glomerular barrier membrane made of polymeric materials that are used for the separation and filtration of substances based on their molecular weight.

Depending on the molecular size of a substance situated in the blood, we can determine if such substances can be filtered through the filtration membrane or not.

However, the lower the molecular weight of the substance, the higher their likelihood of filtration.

In the plasma, the substance that has a lower molecular weight are water, glucose, and sodium while substance associated with protein, blood cell, and platelets contains higher molecular weight.

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Explain the relationships between dehydration synthesis, hydrolysis, monomer, and polymer

Answers

Answer:

combine with each other using covalent bonds

Explanation:

Most macromolecules are made from single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.

Answer:

Dehydration synthesis is a process by which two monomers are linked to form a polymer, with water being given off as a byproduct.  Conversely, hydrolysis is the process by which water is introduced in order to break down a polymer into its monomer building blocks.

how does a cell get energy from an atp molecule

Answers

Answer:

Whenever a cell needs energy, it breaks the beta-gamma phosphate bond to create adenosine diphosphate (ADP) and a free phosphate molecule. Cells get energy in the form of ATP through a process called respiration, a series of chemical reactions oxidizing six-carbon glucose to form carbon dioxide.

Hope that Helps...

PLEASE HELP ME IM TIMED!

Answers

Answer:

protein i believe

Explanation:

the small bones in the middle ear that transmit vibrations to the inner ear

Answers

Answer:

, yes..............

Explanation:

because the vibrations are transmitted to the inner ear after the bones amplify it

Ossicles are the body's tiniest bones. the malleus (hammer), incus (anvil), and stapes (stirrup). Ossicles amplify sound. 

What are ossicles?

Ossicles are very little bones; in fact, they are the tiniest bones in the entire human body. The malleus (hammer), the incus (anvil), and the stapes are the names of the three bones because of the forms they make (stirrup). The sound is amplified even further by the ossicles.

In order to reach the eardrum, sound waves must first enter the outer ear and then proceed via the ear canal, which is a very short conduit. The incoming sound waves cause the eardrum to vibrate, and the eardrum in turn transmits these vibrations to three very small bones located in the middle ear. The malleus, incus, and stapes are the names given to these three bones.

Hearing is dependent on a series of intricate steps that convert sound waves in the air into electrical impulses. These steps are necessary for hearing.

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