Calculate the mass of an object whose weight is 400 N and acceleration due to
gravity is 10 m/s2

Me the formula cacl2 represents the compound

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?