What makes elements and compounds different from mixtures? Elements and compounds–
have a constant composition.
are made of gases.
will not change when heated.
conduct electric current.

Brainliesttt asap!me : ) who can read an article and answer some questions about it? ? only answer if you can.. : )

Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j