Which of the following best describes a decomposition reaction?
O
A. One element takes the place of another in a compound.
O
B. A single substance breaks down into more than one substance.
O
C. Two substances combine to form a single new substance.
O
D. Two substances recombine to form two new substances.

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Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?

To calculate the molarity of a solution, you need to know the moles of solute and the

Idont understand it 1.what is the boiling point of a solution of 675 grams of ethylene glycol (c2h6o2) in 2.50 liters of water?