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kramer
3 years ago
5

What is the chemical formula for methane?

Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
6 0
The chemical formula for methane is CH4

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Which geologic time did humans exist
umka2103 [35]

Answer:

B

Explanation:

because its says mesozoic era

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3 years ago
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Why do lungfish walk on land?
nordsb [41]

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The new findings support the theory that walking first arose underwater, preceding the move onto land and the development of toes and limbs adapted to land perambulation.

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2 years ago
An ion always has a ________ or ________ charge. While a covalent bond always has no _________, meaning it is __________.
almond37 [142]
An ion has a positive or negative charge. While a covalent bond always has no charge, meaning it is neutral. 
5 0
3 years ago
The equation for the synthesis of ammonia is below. How many moles of H 2 are
kkurt [141]

Moles of H₂ are needed to produce 9.33 moles of NH₃ : 13.995

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

The reaction coefficient in a chemical equation shows the mole ratio of the reactants and products

Reaction for the synthesis of ammonia :

N₂+3H₂⇒2NH₃

moles of NH₃ = 9.33

From equation, mol ratio of H₂ : NH₃ = 3 : 2, so mol H₂ :

\tt =\dfrac{3}{2}\times 9.33\\\\=13.995

4 0
3 years ago
A gas in a sealed container had its volume increased from 12.1 liters to 21.1 liters.
ArbitrLikvidat [17]

Answer:

The answer to your question is   P2 = 170.9 torr

Explanation:

Data

Volume 1 = 12.1 l                                Volume 2 = 21.1 l

Temperature 1 = 241 °K                      Temperature 2 = 298°K

Pressure 1 = 546 torr                           Pressure 2 = ?

Process

To solve this problem use the combined gas law.

                P1V1/T1 = P2V2/T2

-Solve for P2

                P2 = T1V1T2 / T1V2

-Substitution

                P2 = (241 x 12.1 x 298) / (241 x 21.1)

-Simplification

                P2 = 868997.8 / 5085.1

-Result

                P2 = 170.9 torr

       

8 0
3 years ago
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