3 List the products formed from each pair of reactants.
a Zinc + hydrochloric acid
b Sodium carbonate + sulfuric acid
C Barium + water
d Nitric acid + magnesium hydroxide

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled