90 g of 4 ºC water is heated until the temperature is 37 ºC. If the specific heat of water is 4.184 J/g ºC, calculate the amount of heat energy needed to cause this rise in temperature.

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol

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.