How would you describe a method to find the position of an unknown metal in this reactivity series : .copper
.iron
.magnesium
.zinc

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating