Which of the following measurements is correctly matched in SI units?

The sum of the protons and neutrons in an atom is its

An atom that loses or gains electrons is called an A. Isotopes B. Proton C. Neutron D. Ion

What can pressure be changed by

The pressure on a sample of an ideal gas is increased from 715 mm hg to 3.55 atm at constant temperature. if the initial volume of the gas is 470.0 ml, what is the final volume of the gas?

True or false nothing is smaller than atom

What are 3 properties of carbon?

A (1. pathogen 2. Germ 3. Bacterium) is an agent that causes disease. All (1. bacteria 2. fungi 3. Viruses) are pathogens.

Calculate the solubility (in g/l) of calcium fluoride in water at 25°c if the ksp for caf2 is 1.5 * 10-10.

Distinguish between the terms accuracy and precision. In general, explain why a precise measurement does not always guarantee an accurate result.

Does it require more energy to melt an ionic compound or dissolve it in water? It requires much more energy to melt it. It takes about the same amount of energy. It requires much more energy to dissolve it. Ionic compounds are insoluble in water.