2 SO₂ + O₂ → 2 SO₃ + energy This reaction would be considered

Write the ka expression for an aqueous solution of hypochlorous acid:

Which of the following definitions describes a chemical hazard? a. Can be present in dust, fumes, liquids, solids, mists, vapors, or gases of products used at a site or released during a construction job b.

The enthalpy of a pure liquid at 75oC is 100 J/mol. The enthalpy of the pure vapor of that substance at 75oC is 1000 J/mol. What is the heat of vaporization at 75oC?

Which postulate of the kinetic-molecular theory applies to the particles of a liquid?

Which is the weight, on earth, of a book with the mass of 1.5 kg?

What is group 18 on the periodic table called? a. noble gases b. metalloids c. nonmetals d. metals

Explain the difference between the greenhouse effect and global warming.

Ionic bonds are formed between metals and non-metals to form salts. a. True b. False

In a closed or isolated system, matter can not be created or destroyed. It can change Forms but is conserved true or false

Explain in terms of element classification, why K2O is an ionic compound