Answer:
D.
Double replacement, CaO + Cl2O
Explanation:
A solution is a homogeneous type of mixture of two or more substances. A solution has two parts: a solute and a solvent.
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3.25 C because I said so and energy is green
A second order reaction varies with the square of the concentration of the reactant. Therefore, halving the concentration will reduce the rate of reaction by a factor of 4.
The answer is E.