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Chemical reaction occur at different rates. Which of the following statements is true about rate of chemical reaction?

A. Low temperature speeds up reactions rates.
B. Catalysts speed up chemical reactions but are not changed by them.
C. The greater surface area exposed, the slower is the chemical reaction.
D. The lower the concentraction of the reactants, the faster the chemical reaction.​

Sagot :

ELAISADERAMAGO

Answer:



We can identify five factors that affect the rates of chemical reactions: the chemical nature of the reacting substances, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration of the reactants, and the presence of a catalyst.

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