Chromium nitride
Chromium nitride is a chemical compound of chromium and nitrogen with the formula CrN.
<h2>Answer:</h2>
The rate of reaction increases to counter the action of removing heat.
<h3>Explanation:</h3>
- The reaction between zinc and hydrogen chloride produces zinc chloride, hydrogen gas, and heat.
- The reaction is exothermic reaction. Heat is produced in the reaction.
- It means the temperature of system increase when reaction proceeds. When heat is removed from system, it stimulates the reaction to fast to produce more heat.
- <u>Due to fast reaction rate of reaction increases. </u>
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Answer:
The no. of moles of CaCl₂ are needed = 3.1 mol.
Explanation:
- From the balanced reaction:
<em>2AgNO₃ + CaCl₂ → 2AgCl + Ca(NO₃)₂,</em>
It is clear that 2 mol of AgNO₃ react with 1 mol of CaCl₂ to produce 2 mol of AgCl and 1 mol of Ca(NO₃)₂.
<u><em>Using cross multiplication:</em></u>
2 mol of AgNO₃ need → 1 mol of CaCl₂ to react completely, from stichiometry.
6.2 mol of AgNO₃ need → ??? mol of CaCl₂ to react completely.
∴ The no. of moles of CaCl₂ are needed = (1 mol)(6.2 mol)/(2 mol) = 3.1 mol.
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