Determine the pH of a solution prepared by dissolving 0.45mole of Chloride in 1.0L of 0.35M aqueous ammonia. Kb for ammonia equals 1.77 * 10-5 [5]

What is the relation between concentration of reactants and the rate of chemical reaction?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.