What is the mass number of an isotope

What group of two or more atoms acting as one ion with one charge?

A bottle with hot, salt water is placed on top of a bottle of cold, freshwater. When the openings of each bottle are placed on top of one another, which of the following describes what would happen?

If a ball is positioned at 3 feet, and let go, will it return at the same exact height?

Which liquid, methanol or ethanol has the largest vapor pressure value at room temperature?

Explain the neutralization of vitamin c with sodium hydrogen carbonate?

Constance is making a vegetable soup that contains carrots, beans, water, salt, pepper, bits of ham, and onions. the soup has to cook for 4 hours. while the soup is cooking, what will happen to some of the minerals that are in its ingredients?

Which of the following form solid solutions? Select all that apply. naturally occurring minerals gases present in air HCl and water sugar and water metal alloys

Alan's go-kart travels 1750 feet per minute, and Barry's go-kart travels 21 miles perhour. Who's go-kart travels faster?

What needs to happen for a solute to dissolve in a particular solvent? A) the attractions between the solute and solvent molecules must be greater than the attractions keeping the solute together and the attractions keeping the solvent together.

Which is a conversion factor for this statement of equality: 12 in. = 1 foot? 12 feet1 in. 12 feet 1 in. 1 in. 12 feet 1 in. 12 feet 1 foot12 in. 1 foot 12 in. 1 foot1 in. 1 foot 1 in.