which material is a pure substance?
a) alloy
b) compound
c) mixture
d)...
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Chemistry, 22.06.2019 16:30
An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:
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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.
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Chemistry, 23.06.2019 01:00
Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.
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Chemistry, 23.06.2019 03:30
Ineed pls urgent 1-20 in order and fully detail step my step.
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