Are all elements abbreviated with one or two letters? If not, name some that aren't.

Ice is lighter and floats in water because it is a crystalline structure in which each water molecule is bonded to a maximum of four other water molecules by which kind of bond?

A liquid does not have a definite shape, but it does have a dinite volume?

An aqueous solution of iron (II) sulfate (FeSO4) is prepared by dissolving 2.00 g in sufficient deionized water to form a 200.00 mL solution. Calculate the molarity of the solution.

What units measure heat? What factors determine heat capacity?

Why is environmental science called interdisciplinary

Heat is most closely related to ___ energy. A. Nuclear B. Electrical C. Thermal

How many moles are in 26.4 grams of lithium

What is the independent, dependent, control group and constant: A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight.

Where are two places that scientists obtain scientific knowledge

Which of the following best describes what happens when an ionic bond forms? A) two atoms come together and share electrons in order to fill their octets. B) two atoms give up their electrons in order to form a bond.