A student measured the masses of four different-sized blocks. The student determined that each block had a mass of 50 grams. (There is a small block, a little bit bigger block, a big block and the biggles block)

Which block has the least density?

This active feature of earth's crust in building mountain ranges as well as islands. this feature is a a) cavern. b) earthquake. c) mountain. d) volcano.

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