Is the dissolving process for most salts endothermic or exothermic?

Is Mercury a heavier element than tin

The tranquilizer valium is sold in 2.0 ml syringes that contain 50.0 mg of drug per 1.0 ml of liquid (50.0 mg/1.0 ml). if a physician prescribes 22 mg of this drug, how many milliliters should be administered?

When an atom loses one or more electrons, this atom becomes a

he solution is said to be an ideal solution, only when the intermolecular forces of attraction between A-A, B - B and A - B are nearly equal. True False

Why does a 4 carbon linear alkane, butane c4h10, have two more hydrogens?

According to the octet rule most elements need_valence electrons.

What is the average speed of particle in a gas at room temperature? Why is temperature an important variable?

An electron is in a region outside the nucleus. An electron a) Is larger than a proton and has no charge b) Has less mass than a proton and has a negative charge c) Is smaller than a proton and has no charge d) Has a positive charge

Under conditions of "feasting", the body favors oxidation/utilization of which source for energy production

2.17 in to 10^23 molecules of Br 2 to moles