Give the symbol of the ion that contains 34 protons and 36 electrons

A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is contained in 45.0 g of calcium fluoride

How can you read a determine the masses

How many grams of O2 are in a 5.0 mol of the element? A. 16 g B. 80 g C. 160 g

The elements on the right side of the stair steps of the periodic table are classified as

What could two atoms of the same element form? A. Covalent bonds, but not ionic bonds. B. Ionic bonds, but not covalent bonds. C. Both covalent bonds and polar bonds. D. Either covalent bonds or ionic bonds.

The closeness of a measurement to the actual value of what is being measured

The chemical standard for the quantity of a mole is based on which substance?

What gas is needed to stay alive and breathe properly

A motorist travels a distance of 406km. during a 7 hour period. what was the average speed?

When the metal was placed in the calorimeter, its temperature dropped to the equilibrium temperature. Calculate the change in temperature of each metal sample. Record these values in Table B of your Student Guide.