What type of bond holds nitrogen and sulfur together in a compound? a. hydrogen
b. covalent
c. ionic
d. they can not bond together

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.

How many moles of oxygen react with 12 moles of aluminum

How do you know when a chemical reaction has occurred