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Scilla [17]
3 years ago
8

Which of these is not a gas? hydrogen, oxygen, gravity, or helium

Chemistry
2 answers:
katrin2010 [14]3 years ago
8 0

Answer:

I think that Gravity is not considered a gas but it can at the same time

Explanation:

Gasses are affected by gravity, as above video will prove. ... Yes, there is a attractive force between the gas molecules and gravity !

The rest are for sure gases

Sholpan [36]3 years ago
7 0

Answer: Gravity.

Explanation: Gravity is what holds the earth's atmosphere to it (which is a mixture of gases). For example, Moon doesn't have an atmosphere only because of a weak gravitational field but that doesn't mean that gravity can be considered as a gas.

Other options (Oxygen, Hydrogen and Helium) are all gases.

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Answer:

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Crank

Answer:

Option D. Al is above H on the activity series.

Explanation:

The equation for the reaction is given below:

2Al + 6HBr —> 2AlBr₃ + 3H₂

The activity series gives us a background understanding of the reactivity of elements i.e how elements displace other elements when present in solution.

From the activity series of metals, we understood that metal higher in the series will displace those lower in the series.

Considering the equation given above, Al is higher than H in the activity series. Thus, the reaction will proceed as illustrated by the equation.

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4 0
3 years ago
Which reaction is a decomposition reaction?
Artist 52 [7]

Answer:

See the answer below , please.

Explanation:

In a decomposition reaction, a certain compound is "broken" to give two or more different products.

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AB -> A + B

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