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Vikentia [17]
2 years ago
14

Oxygen in the air can react with wood when a match is burned. Ash is produced.

Chemistry
2 answers:
Hitman42 [59]2 years ago
8 0

Answer:

D. Ash is a different substance than wood.

krek1111 [17]2 years ago
3 0

Answer:

D the atoms of ash did not exist before

Explanation:

because I jnwo .... k

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Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical
Kazeer [188]

Answer:

2H_2O\rightarrow 2H_2+O_2

Explanation:

Hello there!

In this case, for the reaction by which water is decomposed to molecular hydrogen and oxygen:

H_2O\rightarrow H_2+O_2

It is necessary to perform the inspection balance process since there is a dissimilar number of atoms of oxygen on both sides; therefore, by putting a 2 on water we balance oxygen:

2H_2O\rightarrow H_2+O_2

But now, there are four hydrogens on the left; therefore, we put a 2 on hydrogen to finally balance it:

2H_2O\rightarrow 2H_2+O_2

And obviously, the coefficient in oxygen is an unwritten 1.

Best regards!

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3 years ago
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We use petroleum to produce electricity.
5 0
3 years ago
Mg3N2+3H2O-3MgO+2NH3 If 17 g of magnesium nitride is used, what volume of ammonia gas would be collected at 20°C and 0.989 atm?​
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Explanation:

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2 years ago
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