Which of the following is unchanged when a solution is diluted by the addition of solvent?

a. volume of solvent

b. mass of solvent

c. number of moles of solute

d. molarity of solution

When an atom gains an electron to become an ion what happens to its size?

Why is the temperature different in different places in the U. S.

What is the mass of an object if the density is 7.85g/l and the volume is 41.25ml

How does nh3 and ca (OH) 2 form OH - ions in water?

How many kJ are required to melt 100 grams of water?

Why does a fluorine ion have a charge of - 1

Cancer, impaired sexual function and cognitive impairment have been found to be related to Answer smoking. eating a caffeine-rich diet. alcohol consumption. eating a high-fat diet. .

Which of the following correctly identifies the composition of an oxygen atom? A. 8 protons, 8 electrons, and 8 neutrons. B. 6 protons, 6 electrons, 6 neutrons. C. 8 protons, 6 electrons, 7 neutrons. D. 6 protons, 6 electrons and 12 neutrons

After one half life, the ratio of parent atoms to daughter atoms in a sample is 1:2. True or False

All of the following can be used to define an acid except a hydrogen ion donor in a reaction a substance that increases the hydronium ion concentration of a solution an electron-pair acceptor in a reaction a substance that increases the hydroxide