Chemistry, 06.05.2020 07:32 nikitakhrabkov123
How are mixtures different than pure substances?
Question 5 options:
Mixtures have lower boiling points.
Mixtures can be separated physically.
Mixtures contain only one type of atom.
Mixtures are less dense than pure substances.
Answers: 1
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Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.
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Chemistry, 22.06.2019 15:30
Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium
Answers: 1
Chemistry, 23.06.2019 11:00
Nh4no3 n2o + 2h2o a chemist who is performing this reaction starts with 160.1 g of nh4no3. the molar mass of nh4no3 is 80.03 g/mol; the molar mass of water (h2o) is 18.01 g/mol. what mass, in grams, of h2o is produced?
Answers: 1
Chemistry, 23.06.2019 16:30
If the enthalpy value for a reaction is negative, what does that indicate about the reaction?
Answers: 1
How are mixtures different than pure substances?
Question 5 options:
Mixture...
Question 5 options:
Mixture...
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