Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. the mercury used to fill the cylinder weighs 306.0 g. from this information, calculate the density of mercury.

How many electrons are in the outermost shell of the ga3 + ion in its ground state?

The half-life of a material increases with the amount of material present. a. True b. False

What is generally true about the compressibility of solids?

What kinds of ions do a sodium Atom and a chlorine atom become one of valence electron is transferred from one to another

In the chemical equation 2 Co (NO3) 3 + 3 (NH4) 2S → Co2S3 + 6 NH4NO3, how many nitrogen atoms are on each side of the equation?

Compared to a phosphorus atom, a P3 - ion has (1) more electrons and a larger radius (2) more electrons and a smaller radius (3) fewer electrons and a larger radius (4) fewer electrons and a smaller radius

1. Crystals of ammonium chloride, NH4Cl, seem to disappear when mixed with water. The resulting clear liquid containing ammonium chloride and water is a A) compound. B) new substance. C) homogeneous mixture. D) heterogeneous mixture. 2.

During a laboratory experiment you discover that an enzyme-catalyzed reaction has a delta G of - 20 kcal/mol. If you double the amount of enzyme in the reaction, what will be the delta G for the new reaction

A liquid mixture in which particles can be seen and easily separated by settling or filtration is a a. solution. b. suspension. c. solvent. d. solute.

Which material best absorbs sound waves in a room? a. heavy curtains b. hardwood floors c. brick walls d. cement floors