Which of the following is the strongest acid? HCl, H2S, Cl2, H2O

For the reaction h3po4 (aq) h2po4 - (aq) + h + (aq) ∆h° = - 14.2 kj/mol. what is the ka of h3po4 at 60 °c? (a) 4.2  10-3 (b) 6.8  10-3 (c) 8.5  10-3 (d) 1.8  10-2

In response to boyle's law, the pressure of a gas increases as the volume decreases because

5.60 g of an unknown gas at STP fills a 500 mL flask. What is the molar mass of the gas

What happens to a reaction at equilibrium when more reactant is added to the system? the reaction makes more reactants. the reaction is unchanged. the reaction makes more products?

When a solid compound is formed from chemicals that are in solution, it is called a?

In order for either ethyl or isopropyl alcohol to be considered a general purpose disinfectant it must have what percent alcohol content?

According to the law of conservation of matter, which statement about chemical reactions is true? a. every atom destroyed in a chemical reaction must be replaced. b. atoms are created by some reactions and destroyed by others. c.

How many atoms of carbon are represented in 3CH3CH2O? 2 4 6 8

What is the atomic mass of heilum

Electronegativity Values Unknown Element Electronegativity A 3.44 B 0.79 C 1.8 D 2.0 Which two elements are most likely to form an ionic bond together? A and B B and C A and D C and D