Which of these is a compound?

A) air

B) sugar C12H22O11

C) the alloy steel

D) nitrogen N

What two substances does Earth have that allow it to support life?

Which compound decreases in solubility as the temperature of the solution is increased from 10c to 50c

What term defines a mass which is exactly equal to 1/12 the mass of one carbon-12 atom

Describe two ways that carbon can get from seashells to the atmosphere

What is the color of the indicator thymol blue in a solution that has a pH of 11? (1) red (3) pink (2) blue (4) yellow

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?

What characteristics of water allow it to have high surface tension?