What would happen if you took 20g of CuSO4 and placed it in a solution that already had 30g of CuSO4 in 100g of water at 60°C?

A: 10g of CuSo4 would remain undissolved
B: Cannot tell based on the information provided
C: All of the added salt would dissolve
D: 50g of CuSo4 would remain undissolved

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

Which sample at stp has the same number of atoms as 18 liters of ne at stp