The phase change in which a substance changes from a solid to a liquid is

a. freezing.

b. melting.

c. sublimation.

d. condensation.

What is the identity of a sample that has a mass of 25.0 g and a volume of 2.38 cm3? A. aluminum B. silver C. iron D. lead

12.5M AgNO3 is made using 3.5L H2O. How many grams AgNO3 are needed to produce the solution?

A car goes from 4.47 m/s to 17.9 m/s in three seconds

What happens to the number in a measurement that is converted from kilometers to meters

1) A wagon with a weight of 136 N is moved 19 m from its original location. How much work was done?

Which would be most likely be the pH of a highly-corrosive acid? a) 1 b) 5 c) 8 D) 11

The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angles to one another that are not 90 degrees.

An aqueous solution at 25∘C has a hydronium ion concentration of 3.2*10-9 M. What is the hydroxide ion concentration of the solution? Write your answer in scientific notation. Use the multiplication symbol rather than the letter x in your answer.

What is the electron configuration of a sulfur atom in the ground state?

Unsaturated fatty acids are often classified according to the number of carbon atoms between the terminal methyl carbon (the omega carbon) and the closest double bond to the methyl end of the chain.