Two atoms of element A unite to form a molecule with the formula A2. The bond between the atoms in the molecule is

1) electrovalent

2) ionic

3) nonpolar covalent

4) polar cavalent

Classify each of the following as an observation, a law, or a theory. (a) All matter is made of tiny, indestructible particles called atoms. (b) When iron rusts in a closed container, the mass of the container and its contents does not change.

A sample of air has a volume of 140.0 mL at 67C. To w hat temperature must the gas be lowered to reduce its volume to 50.0 mL at constant pressure?

A student measures the length and mass of an object records the link is 45.2 cm convert distance measurement to the correct SI base unit. 4520.4524.52x10-4km17.8in

What is different about pure and mixtures

What's the 3 matter

Increasing which variable would decrease the pressure of a contained gas?

How many moles of h2o are produced when using 7 moles of h2

A 25 mL sample of 0.100 M HNO3 completely reacts with NaOH according to this equation: HNO3 (aq) + NaOH (aq) → NaNO3 (aq) + H2O (1) How many moles of HNO3 are in the sample?

What does diatonic means

A general term for an attractive force that holds two atoms together is known as an