Lead oxide is formed when a lead cation that has a charge of 2 + combines with an oxygen anion that has a charge of 2-. Using the crisscross method, write the formula for lead oxide.

2Al + 3MnSO4 ↔ Al2 (SO4) 3 + Mn For the above equation, explain the direction of shift in equilibrium position when the concentration of aluminum increases.

What is a change in heat energy when 40 g of water at 25°C is raise to 60°C

Which element has six protons in its nucleus?

Suppose you have an impure solid that needs to be purified. The solid is insoluble in cold water and slightly soluble in hot water; it's soluble in both cold and hot ethanol; it's insoluble in cold toluene and soluble in hot toluene;

What evidence can you provide that combustion is a chemical change?

If 20.0 g of Pb transfers 4950 J of energy into 50.0 g of water, how much would the temperature of the water change?

Which examples demonstrate responses to stimuli? Check all that apply. A. A Venus flytrap closes on a fly. B. Large amounts of bacteria are present in a soil sample. C. A plant grows toward the sunlight. D. A rabbit has both white and black fur. E.

Aluminum carbonate (s) - aluminum oxide (s) - carbon dioxide (g)

Which physical state of matter has the most kinetic energy? A. plasma B. gas C. liquid D. solid

Dioxin, produced as a by-product of various industrial chemical processes, is suspected of contributing to the development of cancer and birth defects in animals and humans.