The charge of the atom is based on the

1. number of protons and electrons

2. number of protons and neutrons

3. number of protons, neutrons, and electrons

4. atomic number

In terms of shape and volume, how can a gas be defined?

I dont get dependent and independent variables if someone can explain it and give an example that wpould be great!

A colloidal liquid suspended in a gas is called an aerosol. true or false

Which of the following is NOT a characteristic of insects? a. one pair of antennae b. five legs c. one or two pairs of wings d. none of the above

Is carbon dioxide a good absorber of infrared radiation

A certain first-order reaction (A→productsA→products) has a rate constant of 9.90*10-3 s-1s-1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A][A], to drop to 6.

Assign the oxidation number for (NH4) 3PO4

When gold is melted and formed in a mold to make a piece of jewelry, what type of change is taking place?

Do pure substances have the same chemical and physical properties

How is matter conserved in a chemical reaction