What is the pOH of a 0.025 M [H+] solution?

Which of the following hypotheses cannot be tested using the scientific method 1. If the temperature is increased, the reaction rate of HCl and NaOH will increase. 2. Cold weather causes car tires to deflate.

Bromine has two isotopes whose masses are 78.9183 amu and 80.9163 amu. Their abundances are 50.69% and 49.31%, respectively. Calculate the average atomic mass of bromine.

An atom contains 4 protons, 3 neutrons, and 5 electrons. what is its total electric charge?

What type of electromagnetic wave is used in security pens? a. X-rays b. Visible light c. Microwaves d. Ultraviolet radiation

Why are human matter?

Contrast mixtures with pure substances

A standard cell potential of which value describes a spontaneous redox reaction?

Using the combined gas law, if the volume of a gas at 155kPa changes from 22L to 10L. What is the new pressure if the temperature remains constant?

What is a contributor of global warming? a. aerosol sprays b. carbon dioxide c. acid rain d. garbage

How is momentum similar to inertia? Explain.