Choose the correct coefficients to balance the following equation:
__zn + __hcl > __zncl2 + __h2.
a) 1, 2, 2, 2
b) 1, 2, 1, 1
c) 2, 4, 2, 2
d) 0, 2, 0, 0

Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52

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.

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume