Type the correct answer in the box. Express the answer to three significant figures. Given:
CH4 + 202 -+ CO2 + 2H20, AH = -890 kJ/mol
How much energy is released when 59.7 grams of methane (CHq) reacts with oxygen?
The combustion of 59.7 grams of methane releases
kilojoules of energy.

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change