identify 2 changes of state that require energy to be used, and 2 changes of state that require the release of energy

What properties applies to solids but not to liquids or gases?

Which of the following lists included the major types of mountains? A. Folded, fault-block volcanic. B. Folded, tensions compressional. C. Downwraped, compressional, fault-block. D. None of the above

Looking at the structure of caffeine, explain why it is very soluble in a non-polar solvent and a little soluble in water.

How many atoms are in 163 g of calcium?

What is the voltage of a galvanic cell made with magnesium and gold

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.

Carbon dating advisable for measuring materials ages for a few years, thousands of years, millions of years

What is the pH of a solution with [H+] = 7.0 x 10^-2?