Which of the following reactions is a redox reaction? (a) k2cro4 + bacl2 → bacro4 + 2kcl (b) pb2+ + 2br- → pbbr2 (c) cu + s → cus which of the following reactions is a redox reaction? (a) k2cro4 + bacl2 bacro4 + 2kcl (b) pb2+ + 2br- pbbr2 (c) cu + s cus (a) only (b) only (c) only (a) and (c) (b) and (c)

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?