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aalyn [17]
3 years ago
7

In a chemical equation, what do the coefficients indicate?

Chemistry
2 answers:
just olya [345]3 years ago
8 0

The answer is D. a number preceding an elemental or molecular symbol.

example - <u>2</u>H2 + O2  -> <u>2</u>H2O

The underlined is the coefficient.

Mekhanik [1.2K]3 years ago
6 0
In a chemical equation coefficients indicate the number of molecules/atoms involved in the reaction.
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Write the condensed formula from left to right, starting with (CH3)x where x is a number.
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Complete question:

Write the condensed formula from left to right, starting with (CH3)x where x is a number.

See attached image for the structure formula of the compound

Answer:

(CH₃)₂CHC(CH₃)₃ named as 2,2,3-Trimethylbutane

Explanation:

If we number the longest chain of the carbon starting from the left, we will observe that there are four carbons in the straight chain as shown in the image.

Starting from first carbon from the left of the carbon chain, at carbon number number 2, there two alkyl group, that is two methyl (CH3 is two). Also at carbon number 3, there are three alkyl group, that is three methyl (CH3 is three).

The condensed formula will be written as;

(CH₃)₂CHC(CH₃)₃

This compound is named as 2,2,3-Trimethylbutane, an isomer of Heptane

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