Approximately what mass of CuSO4*5H20 (250 g mol^-1) is required to prepare 250 mL of 0.10 M copper(ll) sulfate solution?
A) 4.0 g
B
6.2 g
С
34 g
D
85 g
E
140 g

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro