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frosja888 [35]
3 years ago
11

Which one of the following are pure substances : water,salt water,copper,brass,air,oxygen​

Chemistry
2 answers:
ANEK [815]3 years ago
5 0

Answer:

Copper, Water, and Oxygen

Explanation:

Because they are compounds and compounds are pure substances <3

ASHA 777 [7]3 years ago
5 0

Answer: copper

Explanation: because all of the atoms that make up copper are copper i.e its not a compound or mixture. not made od molecules

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In this equation, what should be the coefficients of the reactants and products?
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Reactants :

I₂   ,   O₂

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hope this helps!

7 0
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A sample of a pure substance with a density of 3 g/mL is separated into two pieces. One piece has a mass of 50 g and the other p
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8.3ml

Explanation:

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3 years ago
When electricity flows through water, the water molecules split into molecules of hydrogen and oxygen gas. How many oxygen (O2)
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If a cell has a nucleus, then it is a
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3 years ago
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Which formula equation represents the burning of sulfur to produce sulfur dioxide?
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