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spin [16.1K]
3 years ago
10

Could hydrogen fuel replace fossil fuels in the future? Why or why not?

Chemistry
1 answer:
Sedbober [7]3 years ago
4 0
We don't know yet cause people have tried to use hydrogen to start cars and have failed so right now it is not known.
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_________ rock's form when hot, molten rock cools and becomes a solid
zavuch27 [327]
The answer to fill in the blank is (igneous)

I hope I helped.
3 0
4 years ago
In your own words, describe the purpose of using a chemical equation.<br><br> PLEASEEEE HURRY
Soloha48 [4]

Answer:

Hey mate, here is your answer. Hope it helps you.

Explanation:

To show how substances in a chemical reaction interact and to keep track of all elements and the number of atoms in each element on each side of the equation.The purpose of writing a balanced chemical equation is to know: the reactants (starting material) and products (end results) that occur. the ratios in which they react so you can calculate how much reactants you need and how much products can be formed.

5 0
3 years ago
Denver, Colorado (altitude above sea level is 5,280 ft) has an atmospheric pressure of 633. mm Hg. Calculate the boiling point o
Fed [463]

Answer:

T2 = 94.6 C

Explanation:

Use Clausius-Clayperyon equation.

ln P1/P2 = ∆Hvap/R (1/T2 - 1/T1) where R = 8.314 J/mol-K and T is in degrees K

P1 = 760 mmHg

P2 = 630 mmHg  

T1 = 373 K

T2 = ?

∆Hvap = 40.7 kJ/mole

R = 0.008314 kJ/mole-K (NOTE: change R to units of kJ)

Plug in and solve for T2

ln 760 mmHg/630 mmHg = 40.7 kJ/mole (1/T2 - 1/373K)

T2 = 367.74 K = 94.6 C

8 0
3 years ago
Covert 32 ft/sec^2 to m/min^2
igor_vitrenko [27]

Answer:

Explanation:

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The volume is the same for any gas

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