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aleksandr82 [10.1K]
2 years ago
12

In synthesis reactions, there are always more _____________ than ________________.

Chemistry
1 answer:
nydimaria [60]2 years ago
4 0

Answer:

A

Explanation:

always more reactants than products

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Hot, molten rock deep below Earth’s surface is called lava mantle rock parent rock magma
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I think it is Magma

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Electronegativity _____. generally increases moving from left to right across a period generally decreases moving from left to r
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Which change will decrease the electric force between two positively charged objects? moving them closer together moving them fa
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The insulating and packing material Styrofoam is a dating and packing material Styrofoam is a polymer of styrene. Find the molec
Nataly [62]

Explanation:

In order to find the molecular formula, we have to find the empirical formula first of all.

It is known that is a styrofoam, elements present are carbon and hydrogen atoms.

Element     %         Atomic mass       Molar ratio           Simple ratio

    C        92.25          12.01              \frac{92.25}{12.01} = 7.68                 \frac{7.68}{7.68} = 1

     H        7.75            1.008            \frac{7.75}{1.008} = 7.68                 \frac{7.68}{7.68} = 1

As empirical formula of styrofoam is C_{x}H_{x}.

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Molar mass given is 104 g/mol.

So,     \frac{\text{molar mass}}{\text{empirical formula mass}} = \frac{104}{13.0} = 8

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8 0
3 years ago
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