Which of the following is a valid method for reducing the atmospheric amount of greenhouse gases? 1 . Reduce the use of chemicals in the stratosphere that destroy ozone. 2 . Reduce the use of alternative sources of fuel such as solar energy. 3 . Reduce the amount of fossil fuels burned by cars. 4. Reduce the amount of acid rain in the sky by altering the patterns of clouds.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l