What is true of an atom with a mass of 15 amu?

Make a chart comparing protons, neutrons, and electrons. Include their mass, location, and electrical charge.

Which elements are metals? check all that apply. rhenium (re) boron (b) lithium (li) krypton (kr) phosphorus (p) mercury (hg) ?

Which metal will displace nickel in a compound? A. Tin B. Arsenic C. Zinc D. Platinum

Commercial grade hcl solutions are typically 39.0% (by mass) hcl in water. determine the molarity of the hcl, if the solution has a density of 1.20 g/ml.

Calculate the vapor pressure of a solution of 0.99 mol of cholesterol in 5.4 mol of toluene at 32°c. pure toluene has a vapor pressure of 41 torr at 32°c. (assume ideal behavior.)

In the reaction of magnesium with oxygen gas, a considerable amount of energy was released. This is an example of an exothermic reaction.

Why does an air bubble rise to the surface of a glass of water?

What term expresses the ratio of moles of reactants and products according to the coefficients in the balanced chemical equation? A) mole ratio B) reactant ratio C) product ratio D) yield ratio E) none of the above

What are some examples of kinetic energy

Under which conditions would the solubility of a gas be greatest? high pressure and high temperature high pressure and low temperature low pressure and high temperature low pressure and low temperature