What are compounds?

1) Pure substance

2) homogeneous mixtures

3) heterogeneous mixtures

How many grams of F2 are needed to react with 12.9 g of NH3? Express your answer with the appropriate units.

A single atom of an element has 11 protons, 11 electrons, and 12 neutrons. Which element is it?

Why must reagent bottles be closed when not in use?

Suggest a mechanism that is consistent with a second order rate law

A weather forecast predicts a hurricane in a location in florida. what are people in the location most likely to do

Burning wood represents a chemical change. True or False?

Why are phosphates in laundry detergent

What is the name of the scientist who discovered the electron

Which of these is not a covalent molecule? 1. F2 2. CO 3. LiF 4. NH3

Define buffer capacity. a. buffer capacity is the amount of acid or base that can be added to a buffer without destroying its effectiveness. b. buffer capacity is the amount of acid that can be added until all of the base is used up. c.