The muscles of the stomach crush food that has entered the stomach cavity. The effect of this on the food is —
A. O both a chemical and a physical change.
B. neither a chemical nor physical change.
C.
a chemical change, only.
D. a physical change, only.

Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?