Why is bronze considered an alloy?
bronze is a hard, golden-brown metal.
bronze is made of the metals copper and tin.
o bronze has been used by people for millennia.
bronze can be shaped to make tools.

Which of the following is not a good technique for managing used oil? a) have specific, labeled catch pans available for technicians who are collecting oil b) spills in your shop and any releases on pavement or outside should be poured down a drain c) do not use oil containers for antifreeze or other non-similar fluids d) be prepared for oil spills with the proper absorbents

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.

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?