How many moles of water (H20) are present in a beaker containing 45.9 g H2O? Give your answer to the
correct number of significant figures. (Molar mass of water = 18.02 g/mol)
45.9 g H20 =
mol H2O

Is a chemical message sent by another individual.

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane