The energy put into a machine to make it work.

Spring tides happen when? A.) The sun, the moon, and Earth are aligned. B.) The sun and moon are at right angles to the earth. C.) The earth is facing the moon. D.) The earth is facing away from the moon.

The definition of a limiting reactant can be summarized as: a the reactant that is used up b the greater amount produced c the reactant that is not fully used d the smaller amount produced

Object A has a temperature of 287 Kelvin, object B has a temperature of 374 Kelvin. In what direction will thermal energy flow?

If you choose to wear loose clothing, large or dangling jewelry, or contact lenses to lab, which of the following statements best represents how you should proceed? A.

How many grams of potassium reacts with 16 grams of oxygen to produce 94 grams of potassium oxide

What variables affect the acceleration of an object and in what manner do they affect the acceleration?

How do valence electrons relate to the chemical reactions of an element?

What is the weighted-average mass of all known isotopes for an element

What is the Celsius equivalent of 212°f

Identify the characteristics of tornadoes and hurricanes