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Chemistry, 22.06.2019 17:00
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
Chemistry, 23.06.2019 17:20
Which determines the state of matter for any material? a. the size of the atoms b. the hardness of the material c. the behavior of the molecules d. the weight of the material b. fixed volume, takes the shape of its container c. completely fills its container, definite shape d. completely fills its container, takes the shape of its container
Answers: 1
Chemistry, 23.06.2019 18:30
What is the solution to the problem expressed to the correct number of significant figures? (102,900 ÷ 12) + (170 × 1.27) = ? a. 8,790 b. 8,790.9 c. 8,791 d. 8,800
Answers: 2
Chemistry, 23.06.2019 22:30
How many moles are in 4.6 x 10^19 atoms? *#27 is the question
Answers: 1
what are Noble Gases?...
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