How many moles of ions are in the following? (a) 0.0245 g AgNO3

(b) 0.182 mol K2CrO4

(c) 0.630 g Ba(OH)2

(d) 1.48 X 10^-9 mol Na2CO3

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml