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kramer
2 years ago
8

Which of the following is a physical property? A. Flammability B. Heat of combustion C. Solubility D.Toxicity

Chemistry
2 answers:
Rasek [7]2 years ago
6 0

I think it would be solubility but I’m not sure

gogolik [260]2 years ago
3 0

Answer: Option (C) is the correct answer.

Explanation:

A property that does not cause any difference in the chemical composition of the atom is known as a physical property.

For example, boiling point, mass, density, melting point, solubility etc are physical properties.

On the other hand, a property that that cause difference in the chemical composition of a substance is known as a chemical property.

For example, combustion, toxicity, flammability etc are chemical properties.

Therefore, we can conclude that out of the given options solubility is a physical property.

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How many moles are in 432 g of Ba(NO3)2?
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Calcium nitrate and ammonium fluoride react to form calcium fluoride, dinitrogen monoxide, and water vapor. How many grams of di
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Answer:

16.79 grams of dinitrogen monoxide are present after 31.3 g of calcium nitrate and 38.7 g of ammonium fluoride react completely. And calcium nitrate is a limiting reactant. Explanation:

Ca(NO_3)_2(aq)+2NH_4F(aq)\rightarrow CaF_2(aq)+2N_2O(g)+4H_2O(g)

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According to reaction , 2 moles of ammonium fluoride reacts with 1 mole of calcium nitrate.

Then 1.046 moles of ammonium fluoride will react with :

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This means that ammonium fluoride is in excess amount and calcium nitrate is in limiting amount.

Hence, calcium nitrate is a limiting reactant.

So, amount of dinitrogen monoxide will depend upon moles of calcium nitrate.

So, according to reaction , 1 mole of calcium nitarte gives 2 moles of dinitrogen monoxide gas .

Then 0.1908 moles of calcium nitrate will give:

\frac{2}{1}\times 0.1908 mol=0.3816 molof dinitrogen monoxide gas.

Mass of 0.03816 moles of dinitrogen monoxide gas:

0.03816 mol × 44 g/mol = 16.79 g

16.79 grams of dinitrogen monoxide are present after 31.3 g of calcium nitrate and 38.7 g of ammonium fluoride react completely. And calcium nitrate is a limiting reactant.

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