Which phrase best describes earths atmosphere A. A single layer of gases surrounding earth
B. multiple layers of gases surrounding earth
C. A bubble of air close to the surface of earth
D. Clouds and particles in a single layer around earth

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

What is the formula that this ionic compounds could form sr2+p3-o2-

Find the mass, in grams, of 5.00*10^23 molecules of f2