What is the oxidation number for Ba?
A. +1
B. -2
C. +2
D. -1

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Stage in which a typical star has completely stopped fusion

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.