2 years ago

10. Which of the following consists of two or more pure substances?

Chemistry

1 answer:

Hunter-Best [27]2 years ago

8 0

I am 100% sure it’s oxygen

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2 years ago

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136

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2 years ago

Explain why atoms are neutral.

svlad2 [7]

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3 years ago

How many moles of mercury, Hg, are there in 1.30 x 10^7 atoms of murcury? PLEASE HELP, IT'S URGENT! Thank you! (:

vodka [1.7K]

1 mole Hg ---------------- 6.02x10²³ atoms
?? ------------------------- 1.30 x10⁷ atoms

1.30x10⁷ x 1 / 6.02x10²³ =

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2 years ago

A sample of gas X occupies 10 mº at a pressure of 120 kPa.

Mashutka [201]

Answer:

The new pressure of the gas comes out to be 400 KPa.

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