A microspectrophotometer measures which of the following?

Electrons

Electricity

Light absorption

Pigments

A company in San Francisco uses petroleum products to make plastics. Arrange the sentences in the correct order to show how the company could be contributing to climate change. Burning fuel releases greenhouse gases.

1. Formic acid, HFor, has a Ka value of 1.8x10-4. a) What is the pH range of a formic acid (HFor) - sodium formate (NaFor) buffer system?

You have a hard glass flask that you plug up with a stopper at room temperature (25 C) and an internal pressure of 1 atm. If you decrease the temperature inside the flask to 5 C, what will the pressure be inside the flask?

Organic chemistry refers to the branch of science that deals with which element? oxygen nitrogen carbon aluminum

Enter a chemical equation for HClO4 (aq) showing how it is an acid or a base according to the Arrhenius definition. Consider that strong acids and bases dissociate completely.

Heat is the total potential energy of a substance that can be transferred. TRUE FALSE

How does Earth's rotation axis cause seasons to change?

Which of the following can be considered evidence of a chemical change? (Click the 4 that apply) A. Evaportation B. Production of a new substance C. Production of Bubbles D. Melting E. Color change F. Dissolving G. Freezing H. Heat is released

The decomposition of hi has a rate constant of 1.80 * 10-3 m-1s-1. how much hi remains after 8.50 min if the initial concentration of hi is 4.78 m?

Explain negative and positive acceleration?