3 years ago

True or false: the moon is the same size as the sun.

Chemistry

1 answer:

Marizza181 [45]3 years ago

3 0

Answer:

false

Explanation:

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Answer: The chemical equation for the formation one mole of $CaCO3(s)$ from its elements in their standard states is $Ca(s)+C(s)+\frac{3}{2}O_2(g)\rightarrow CaCO_3(s)$

Explanation:

The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements, with all substances in their standard states.

The chemical equation for the formation one mole of $CaCO3(s)$ from its elements in their standard states is:

$Ca(s)+C(s)+\frac{3}{2}O_2(g)\rightarrow CaCO_3(s)$

where (s) represents solid state and (g) represents gaseous state.

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Answer:

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Molar mass N = 14.00

Molar mass H = 1.01

Molar mass H4 = 1.01 x 4 = 4.04

Molar mass NH4 = 14.00 + 4.04 = 18.04

Molar mass (NH4)2 = 18.04 x 2 = 36.08

Molar mass S = 32.07

Molar mass O = 16.00

Molar mass O4 = 16.00 x 4 = 64.00

Molar mass SO4 = 32.07 + 64.00 = 96.07

Molar mass (NH4)2SO4 = 36.08 + 96.07 = 132.14

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