Jean's mother lit a candle and placed it on his birthday cake. As they sang happy birthday, the wick burned, the wax melted, the candle changed shape, and the air around the candle heated up. Which of the following is NOT an
example of a physical change?

Calculate the molarity of the solution. 6.02 x 1022 molecules of hci (molecular weight = 36.5 g/mole) in 2.0 liters of water m

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?