What effect does adding a catalyst have for this reaction?

Write the chemical symbol for the ion with 12 protons and 10 electrons

Determine the number of protons and neutrons in plutonium-239 and write its symbol in the form azx.

Which coefficients balance this equation? _H2 + _N2 - > _NH3 A. 1, 2, 3 B. 2, 3, 2 C. 3, 1, 2 D. 4, 1, 3

Quartz, gold and calcite are examples of what

How is the movement of particles in gases different from the movement of particles in liquid?

Why should you avoid wearing baggy clothes in the lab?

A student performs the following procedure: Procedure 1. Measure 25 grams of an unknown solid. 2. Measure 200 grams of water. 3. Pour the unknown solid and water into beaker, which weighs 50 grams. 4. Stir the solution.

When water is warm it will: * allow for solids and gases to dissolve easier make it harder for solids and gases to easily dissolve allow for gases to dissolve easier, but make it harder for solids to dissolve allow for solids to dissolve easier, but

If you drink at 2am can you pass a drug test at 6pm

What do we call a substance that can act as both an acid and a base?