Serious answers only! In the reaction of 1 mole of solid carbon with oxygen gas, the energy of the carbon dioxide gas produced is 393
kJ lower than the energy of the reactants.
1. Write out a balanced equation for the reaction - include the heat of the reaction
2. Is this reaction endothermic or exothermic, explain why.
3. Assuming there is an endless supply of C, how would increasing the amount of O2 molecules change the
rate of the reaction?
4. How would lowering the temperature affect the rate of reaction?

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

According to the tide table below what time of day will the highest tide occur?

Using the periodic table, complete the table to describe each atom. type in your answers