A crystal of solute is added to a solution and the crystal remains undisolved. the solution is best classified as ...

How many atoms of oxygen are there in 5 mol of co2?

Why is parts per million a useful form of measurement when discussing environmental issues?

The molar mass of copper (II) chloride (CuCl2) is 134.45 g/mol. How many formula units of CuCl2 are present in 17.6 g of CuCl2? o 7.88 x 1022 formula units 1.84 x 1023 formula units O 1.91 x 1023 formula units 1.42 x 1024 formula units DONE

How many atoms in a mole of any substance?

Which of the following are likely to form an ionic bond? A. Carbon and hydrogen B. Carbon and sulfur C. Magnesium and sulfur D. Nitrogen and oxygen

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is salt and Solution B is salt. She wants to obtain ounces of a mixture that is salt.

Reactions that affect the nucleus of an atom are called? A. Fusions B. Radioactive decays C. Nuclear reactions D. Fissions

The amplitude of a wave is most directly related to what wave characteristic? Crest length Frequency Wavelength Wave height

Why is oil unable to dissolve well in water? Water is polar and oil is nonpolar, which means they have no attraction for each other. Oil molecules are too large to fit between the closely spaced water molecules in the liquid state.

The fertilizer ammonium sulfate is prepared by the reaction between ammonia and sulfuric acid. How many kg of ammonia are needed to produce 1x10^5 kg of (NH4) 2SO4?