g A 12.61 g sample of NaBr contains 22.34 % Na by mass. Considering the law of constant composition (definite proportions), how many grams of sodium does a 6.81 g sample of sodium bromide contain

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

What is true for a substance that releases energy

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass