One side of a cube is 5 cm long. What is the cube's volume?

5

15

25

125

An atomic nucleus must contain at least one neutron or else the force of attraction of the electron (s) will collapse the atom. True/false

Calcium oxide anion meatl or metal

At ph 1.8, dichloroacetic acid is 8% dissociated. what is the pka for dichloroacetic acid?

The vapor pressure of a solution containing 53.6 g glycerin (c3h8o3) in 133.7 g ethanol (c2h5oh) is 113 torr at 40°c. calculate the vapor pressure of pure ethanol at 40°c assuming that glycerin is a nonvolatile, nonelectrolyte solute in ethanol.

A balloon containing 0.500 mol Ar at 0.00°C and 65.0 kPa pressure is expanded by adding more argon. How many moles of argon are added to bring the sample to a final volume of 60.0 L at 30.0°C and 45.0 kPa? What is the original volume of the gas?

Which of the following substances act as a catalyst in the body? A) carbohydrates B) nuclear Acids C) Lipids D) enzymes

How many carbons are in a molecule of hexane?

A balanced chemical equation is shown below C6H1206 + 602-6H20 + 6CO2 Which of the following best describes the number of atoms for each element in the chemical equation? A.

A subtance speeds up a chemical reaction without being changed itself as known as

How are rare earth elements like neodymiun important to our technological world?