How many grams of sodium sulfate must be added to make 500. mL of a 0.25 M sodium sulfate solution?

Which of the following possesses an ionic bond? H2S LiF CH4 NH3

Suppose you have a sample of an unknown mineral with a mass of 86g. you placed the sample in agrduated cylinder filled with water to the 55mL mark. the sample sinks to the bottom of the cylinder and the water level rises to the 71 mL mark.

Compare how an increase in wavelength affects sounds and light waves.

If a gas at a pressure of 600 mmHg and a volume of 200 mL is changed to 780 mmHg, then what will be the new volume?

Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. Suppose 63. g of octane is mixed with 59.4 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction.

What is the mass of 5000. atoms of silicon

Which coefficients balance this equation? _CH4 + _O2 - > _CO2 + _H2O A. 1, 1, 1, 1 B. 1, 1, 2, 1 C. 1, 2, 1, 2 D. 2, 1, 2, 1

Student B pushed on a cart against the wall with 500 N of force. The cart didn't move. How do u explain what happened?

What is unique about the way that transition metals form compounds? a. They don't form compounds c. They can form bonds with the electrons in the two outer-most shells b. They are the most reactive d. They can donate all of their electrons

What prompted rutherford to do the alpha particle scattering experiment?