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2 years ago

PLEASE HURRY!!!Which common characteristic makes both batteries and fuel cells practical to use?

Chemistry

2 answers:

12345 [234]2 years ago

6 0

Answer:

Option A

Explanation:

They are portable resources that convert chemical energy to electrical energy

Kipish [7]2 years ago

5 0

Answer:

They are portable resources that convert chemical energy to electrical energy.

Explanation:

Batteries are sets of batteries connected in series, that is, they are electrochemical devices in which oxidation reduction reactions (chemical energy) occur, producing an electric current (electrical energy). They can also be called secondary batteries, secondary batteries or accumulators.

Fuel cells, in turn, also transform chemical energy into electrical energy, and their operation produces low environmental impact: no vibrations, no noise, no combustion, no emission of particulates and, depending on the technology, no emission of greenhouse gases. In addition, in the current stage of development, without emission of acid gases and with low pollution.

With that, we can say that batteries and fuel cells are practical because they are portable resources that convert chemical energy into electrical energy.

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A container initially holds 5.67 x 10^-2 mol of propane and has a volume of V1. The volume of the container was increased by add

Brut [27]

Answer:

Initial volume of the container (V1) = 1.27 L (Approx)

Explanation:

Given:

Number of mol (n1) = 5.67 x 10⁻²

Number of mol (n2) = (5.67 +2.95) x 10⁻² = 8.62 x 10⁻²

New volume (V2) = 1.93 L

Find:

Initial volume of the container (V1)

Computation:

Using Avogadro's law

V1 / n1 = V2 / n2

V1 / 5.67 x 10⁻² = 1.93 / 8.62 x 10⁻²

V1 = 10.9431 / 8.62

Initial volume of the container (V1) = 1.2695

Initial volume of the container (V1) = 1.27 L (Approx)

5 0

2 years ago

Explain why organic reactions occur at a slower rate than inorganic reactions. What do chemists use to speed these reactions up?

8_murik_8 [283]

The organic particles are molecules. Because of strong covalent bonding in the molecule, organic compounds do not react quickly. Reactions with organic compounds are generally slower than inorganic reactions due to this fact.

Increasing temperature speeds up a reaction because of there being more collisions and those collisions have higher energy. Also the high concentration of the chemicals, particle size and there being a suitable catalyst present. ( Though this process is harmful should it be used in modifying results in food grains and meats.)

5 0

3 years ago

Which two parts of an atom determine the atom's mass?

DENIUS [597]

the number of protons and the number of neutrons determine an element's mass number. :D

4 0

3 years ago

Sakura tested the ph of several solutions. which substances are acidic? check all that apply. cola-flavored soda: 2.6 cranberry

Step2247 [10]

Answer:- Cola-flavored soda:2.6, cranberry juice:2.9 and pickle juice:5.5 are acidic.

Explanations:- As per the pH scale, the solution is acidic if the pH is below 7 and the solution is basic if the pH is above 7. The solution is neutral if the pH is exactly 7.

There are only three solutions with pH value below 7 and so they are acidic. these three solutions are, cola-flavored soda, cranberry juice and pickle juice.

Rest of them are basic as their pH value is greater than 7.

5 0

3 years ago

Read 2 more answers

Consider the elements carbon, C and silicon, Si.

Aneli [31]

Answer:

and

Explanation:

All the carbon group atoms, having four valence electrons, form covalent bonds with nonmetal atoms; carbon and silicon cannot lose or gain electrons to form free ions, whereas germanium, tin, and lead do form metallic ions but only with two positive charges

the similarities is that Both carbon and silicon commonly form compounds, easily sharing electrons with other elements. Carbon will make multiple bonds with other carbon molecules by forming single, double and triple covalent bonds. ... Carbon and silicon are often combined, with carbon serving as silicon's backbone.

3 0

2 years ago