What is the Base in the reaction below: NH4+ + H20 - NH3 +
H30+
A) H3O+
B) H20
C) NH3
D) NH4+

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

The number at the end of an isotope’s name is the number.

Can someone me with 3 and 4 plz. this is for masteries test.