A 250ml flask and stopper have a mass of 110.525g. A 50.0ml sample of gasoline is pipette unto the flask giving a total mass of 146.770g. Find the density of gasoline.

A student rides his scooter. The student has a mass of 40.0 kg and travels with a constant acceleration of 1.5 m/s. What net force is the student experiencing?

The label on a bottle shows the following information: C2H4O, molar mass 44.06 grams per mole. The formula must be: a. the empirical formula only b. the molecular formula only c. the empirical formula and the molecular formula d.

Decomposition reaction of Ag3N

Would a cell voltage change significantly if the right-hand half-cells contained twice their volume of a solution of the same concentration? Why? What if each electrode were made from cylindrical wires instead of flat sheets?

Which statement about reversible reactions is correct?

Which term specifically describes small chunks of rocks and debris in space that travel through the Earth's atmosphere and hit its surface? meteorites, meteoroids, meteors, meteorides

What is a covalent bond?

Which statement describes how the binary ionic compound CaCl2 is named? The nonmetal is named first, and the ending is replaced with - ide. The metal is named first, and the ending is replaced with - ide.

Calculate the empirical for the molecular formula mass and the molar mass of each of the following minerals: (a) Limestone, CaCO3 (b) halite, NaCl (c) beryl, Be3Al2Si6O18 (d) malachite, Cu2 (OH) 2CO3 (e) turquoise, CuAl6 (PO4) 4 (OH) 8 (H2O) 4

How is a suspension different from a colloid?