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Harlamova29_29 [7]
3 years ago
7

Which term describes the information that a scientist gathers during an investigation? Data, hypothesis, observation, variable a

nd why HURRY
Chemistry
1 answer:
rosijanka [135]3 years ago
4 0

Answer:hypothesis

Explanation:

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Explanation:

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3 years ago
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Mariulka [41]
2) generating power by using fossil fuels is harvesting a non-renewable resource. The more you harvest = the less you have
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a 25.5 liter balloon holding 3.5 moles of carbon dioxide leaks. If we are able to determine that 1.9 moles of carbon dioxide esc
kap26 [50]

Answer:

11.66 L.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

  • If P and T are constant, and have different values of n and V:

<em>(V₁n₂) = (V₂n₁).</em>

V₁ = 25.5 L, n₁ = 3.5 mol.

V₂ = ??? L, n₂ = 3.5 mol - 1.9 mol = 1.6 mol.

<em>∴ V₂ = (V₁n₂)/(n₁)</em> = (25.5 L)(1.6 mol)/(3.5 mol) =<em> 11.66 L.</em>

4 0
3 years ago
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How many particles are in 12.47 grams of NaCl?
jeka94
If we are talking about moles then the answer to that is 0.22
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What is the distinction between magma and lava​
lesya692 [45]

Answer:

Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth's surface.

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