Studyhard3332

30.03.2021 • 

Chemistry

Record the amount of solute left after one minute of stirring for each solution. Beaker Amount of solute at start (g)(first number beside A, B, or C) Amount of solute at end (g)(second number beside A, B or C) Solution with Compound A 50 0 Solution with Compound B 50 15 Plain water in Beaker C 0 0 Variables – Procedure 1 1. What was the independent variable in Procedure 1? (1 point) Solution A, B, and C 2. What was the dependent variable in Procedure 1? (1 point) The boiling point 3. List three (3) controlled variables in Procedure 1. (1 point) (Hint: NOT Beaker C with the plain water)

Ответ:

idontknow11223344

07.05.2020

Chemistry

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A catalyst speeds up a reaction by lowering the activation energy.

Explanation:

A catalyst has no effect on the equilibrium of a reaction.A catalyst does not add energy to a reaction neither does a catalyst consumed in a chemical reaction .

Therefore, A catalyst speeds up a reaction by lowering the activation energy.

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