If a leaf falls from a tree we assume that it is in free fall and not affected by air resistance, how many force vectors does the leaf have?

What is the strong nuclear force

If a sample has a mass of 245.8 grams and takes up 94ml of space, what is the density of the sample?

What problem would unlimited cell growth pose for a cell

If you made up a solution of NaOH by adding 0.010 mole of solid NaOH to 1.0 liter of distilled water, what would be the concentration of the OH - (aq) ?

Two clear liquids are combined. A green solid forms. color change absorption of heat formation of precipitate formation of gas

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?

What ionic bond occurs between what particles? A. Two Negative Ions B. A positive and negative ion C. Two positive ions D. Two neutral atoms

Which of the following are good traits of a hypothesis? it will be able to be tested it can predict an outcome it will explain the observations all of these

What is the mass of a box of nails