Physical properties can be used to describe matter. Some properties are dependent on the amount of matter present. All BUT ONE of these physical properties changes with the amount of matter. That is A) density. B) mass. C) volume. D) weight.

1. Construct Explanations How does the time at which you see things happen at a baseball game compare to the time when you hear things happen? Explain your answer.

If 5430 J of energy is used to heat 1.25 L of room temp. water (23.0 °C) whats the final temp of the water?

Do you expect to find an atom with 26 protons and number 52

Why can't all mixtures be classified as solutions?

If you were asked to convert 25 hg to the unit cg, which of the following would be the first fraction used in the conversion?

Nuclei with too many or too few neutrons are?

Be sure to answer all parts. Enter the formula for potassium dihydrogen phosphate and determine its molecular (formula) mass.

g Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. Suppose 2.71 g of ethane is mixed with 3.8 g of oxygen. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction.

How many molecules of atp are produced in aerobic versus anaerobic cellular respiration

Write a balanced chemical equation for the complete combustion of C3H7BO3, a gasoline additive. The products of combustion are CO2 (g), H2O (g), and B2O3 (s).