Pure metals are . used less often than alloys

are more resistant to corrosion than alloys

used more often than alloys

harder than alloys

Which of these is a physical property

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next