10) How many years are required for 028 g of cesium-137 to decay to 3.5 mg given the half- life is 30 y?

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

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products

Is of of 3- ? a. 1--3- b. 1--2- c. 1--3- d. of