If a neutral atom of oxygen has 8 protons, 8 electrons, and 7 neutrons, what number is the mass number of this atom?

A. 8

B. 15

C. 16

D. 23

What do compounds and mixtures have in common

Arrange the following alkyl bromides in order from most reactive to least reactive in an SN2 reaction: 1-bromo-2-methylbutane, 1-bromo-3-methylbutane, 2-bromo-2-methylbutane, and 1-bromopentane.

Which process results in a chemical change? A) Tearing tin foil B) melting an iron bar C) crushing an aluminum can D) burning magnesium ribbon

1.05kg of aluminum what is the heat capacity?

The mass of an object is the ___. A) amount of matter it contains B) amount of space it takes up C) amount of water it displaces D) force of gravity acting on it

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?

A synonym for dwindled