How much of the earth's land surface is covered by sedimentary rock? 75%
90%
50%
66%
First one to answer i will give brainenst

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)