How many valence electrons do most of the noble gases have

What type of bonding is found in zinc chloride ZnCl2 (s) ?

At 25 °C and 795 Torr, carbon dioxide has a solubility of 0.0356 in water. What is its solubility at 25 °C and 1590 Torr

Why does the evaporation of sweat cool your body on a warm day

0.055 grams of PbSO4 is dissolved in 200.00 grams of H2O. 1. What is the mass of the total solution? 2. What is the concentration of the PbSO4 in ppm?

What happens when heat is removed from water? The water particles move farther apart. The water changes from a liquid to a gas. The temperature of the water increases. The kinetic energy of the water particles decreases

The percentage of carbon dioxide in the atmosphere has increased in the last century and is a concern for the environment as it increases the greenhouse effect. Give one possible explanation for the increase of carbon dioxide in the atmosphere

Is KBr an acid or base

if you read the the liqud volume where the liqud touches the wall of the cylinder rather than at the meniscus

Design an experiment using a radioactive tracer to evaluate the amount of wear on steel auto engine cylinders using different types of lubricating oils. How should I do this? Any Ideas?

A non-metallic atom (at. no. 9) forms a molecule of the same, containing a single covalent bond. give reason