Which is an example of a pure substance? A. coffee B. helium C. vinegar D. trail mix

Which word refers to the smallest functional unit of living thing

In most cases of fischer esterification, the carboxylic acid is the more "valuable" piece and the alcohol is used in excess. let's say you are making the ethyl ester of an acid and use the ethanol in excess.

What is an individual characteristic?

1. Baking soda and vinegar combined * 1. Bubbles form 2. Change of state 3. No new substance formed 4. Smell produced 5. New substance forms It's multiple choice

If you prefer to learn by reading to your self instead of participating in a group discussion, you are most likely a what kind of leaner.

The molar mass of water (H2O) is 18.02 g/mol. Yun needs 0.025 mol H2O for a laboratory experiment. She calculates that she needs 72.0 g H2O for the experiment. Yun's calculation was incorrect because she set up her unit conversion incorrectly.

I'm doing isotope homework and I need the find the number of protons, neutrons, and electrons first one is chromium-58 and chromium-63

Trisha and her lab partner were conducting a variety of experiments to produce gases: hydrogen, oxygen, and carbon dioxide. In one experiment, they added a piece of magnesium ribbon to 10 milliliters of hydrochloric acid.

what mass of magnesium is required to react with excess nitrogen to produce 0.500 mol magnesium nitrade

Silver chromate is sparingly soluble in aqueous solutions. the ksp of ag2cro4 is 1.12 * 10-12 m3. what is the solubility (in mol/l) of silver chromate