The molarity is 31.0 * x / 2, such that x is the molar mass of Ca₃(PO₄)₂
Answer : 
and 
Explanation:
According to Boyle's law, it states that pressure is directly proportional to the volume of the gas for a fixed amount of gas and at constant temperature.
The equation given by this law is:
where,
are initial pressure and volume.
are final pressure and volume.
Thus the correct relation for pressure and volume for a fixed amount of gas at constant temperature according to Boyle’s law is and
Water is an example of a balanced synthesis equation: 2 H2(g) + O2(g) → 2 H2O(g). The number of atoms in the reactants and the number of atoms in the products must balance in a chemical equation.
<h3>What is balanced equation?</h3>
A chemical reaction equation is said to be balanced if both the reactants and the products have the same total charge and the same number of atoms in the reaction. In other words, both sides of the reaction have an equal mass and charge balance.
The Law of Conservation of Mass states that mass cannot be created or destroyed in a chemical reaction. On the left and right sides of a balanced chemical equation, there are an equal number of atoms of each element.
Therefore,
Water: 2 H2(g) + O2(g) → 2 H2O(g)
2K + 2H2O → 2KOH + H.
NaCN ( a q ) + HBr ( a q ) → NaBr ( a q ) + HCN ( g )
2HgO(s)→2Hg(l)+O2(g)
2CH3OH + 3O2 → 4H2O + 2CO2
HCl(aq)+NaOH(aq)⇌NaCl(aq)+H2O
To learn more about balanced equation, refer to:
brainly.com/question/26694427
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Answer:
40°C.
Explanation:
A calorie is defined as the amount of energy needed to raise the temperature of 1 gram of water through 1 °C. In the same way, a kcal would be defined as the amount of energy needed to raise the temperature of 1 kilogram of water through 1 °C.
Based on this definition, 100kcal will increase the emperature of the water in:
100kcal / 2,5kg = <em>40°C</em>
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I hope it helps!
