A substance has a melting point of °C. Tom says the substance is liquid at 20 ° C. Ben says it could be liquid or gas. Explain who is correct .

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice

How is the way a mixture is combined different from how a compound is combined?

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion