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timofeeve [1]
3 years ago
14

How many grams of C3H8 are in a 7 L tank at 293 K and 5.45 atm?

Chemistry
1 answer:
Sophie [7]3 years ago
8 0
1.59 moles















































112211111111111112
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Copper is plated on zinc by immersing a piece of zinc into a solution containing copper(II) ions. In the plating reaction, coppe
Aloiza [94]

Hey there!:

Copper plating on Zinc will occur via this simple reaction:

Cu²⁺   +   2 e⁻   ⇌   Cu

When a species gains electron, it is reduced. Its oxidation state is decreased. For example, in the above reaction Cu2+ gained 2 electron to get reduced to Cu. Its oxidation state changed from +2 to 0. Hence it is a reduction reaction.

So, the correct answer is  :

The copper II ions  gain two electrons and are reduced.

Answer B

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3 years ago
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the answer is B. Atmosphere

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Lionel places red blood cells in a beaker of pure water, and then he observes their
scZoUnD [109]

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The red blood cells will burst

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When the red blood cells are placed in pure water, they will gain water by osmosis, swell and finally burst due to their weak cell membranes. This process is referred to as hemolysis.

7 0
3 years ago
How many atoms are in 4H3BO3
maksim [4K]

1 mole of h3bo3...........6.023*10²³ each h and B and 0 so we will have 3hydrogen+ 1 B+3 oxygen = 7*6.023*10²³ atoms

1 mole .......7*6.023*10²³atoms

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Which of the following is the main function of the Circulatory System?
kolbaska11 [484]

Answer:

B: The transport oxygen and nutrients around your body and help to get rid of wastes

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The circulatory system carries oxygen and nutrients to the body, but it can also help get rid of waste (though that isn't a huge function of it).

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