How is the mass number related to the number of protons and neutrons an atom has

A 0.0200 gram piece of unknown alkaline earth metal, M, is reacted with excess 0.500 M H 2 SO 4, and the hydrogen gas produced is collected over water. The total gas pressure inside the collecting tube is 1.01 atm., the temperature 24.0 o C.

What is the name of the device used to measure the heat transferred from one substance to another

Viktor tests a solution with a strip of blue litmus paper. The paper turns pink. The solution is a

Ionic compounds can conduct electricity when dissolved in water or melted, because a. the ions are free to move. b. they have no ions to contribute to the solution. c. the ions are fixed in place. d. they have shared electrons.

If the concentration of a reactant in a mixture is doubled and the reaction rate increases by a factor of eight, the reaction order with respect to that reactant is

What volume of gold would be equal in mass to a piece of copper with a volume of 101 ml? the density of gold is 19.3 g/ml; the density of copper is 8.96 g/ml?

What does condensation mean in the water cycle?

An organism's unique characteristics affect the individual's ability to survive in its environment. true or false

What is the difference between a chemtrail and a contrail?

How do you dispose of an unknown chemical