Which of the following substances is an Arrhenius acid? BF3 HCNNH3Mg (OH) 2

Why HF is a weak acid?

Why do they put flexible connections in the road on a bridge

What kind of inhibitors are transition state analogs usually classified as? uncompetitive inhibitors competitive inhibitors noncompetitive inhibitors

Why are metals always monoatomic?

Which represents the greatest time frame in which a short-term environmental change can occur? in days O in minutes O over hundreds of years O over thousands of years

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?