Ions in a certain volume of 0.20MNaCl(aq)are represented in the box above on the left. In the box above on the right, draw a particulate diagram that represents the ions in the same volume of0.10MCaCl2(aq).

How much energy is made when a pice of wood burns. how do you know

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

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.