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makkiz [27]
2 years ago
8

Which of the following statements is true?

Chemistry
1 answer:
AlekseyPX2 years ago
8 0

Answer:

C

Explanation:

Its eurasian plate.

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The density of water at 4 degrees Celsius is 1.000 g/mg is it chemical or physical property?
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Answer:

Physical Property

Explanation:

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Flamability, acidity, toxicity, etc. are chemical properties, because they chemically change the makeup of the object/thing.

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The primary role of the nervous system is to:
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Gather and respond to information
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Which biogeochemical cycle has the least activity because the essential element is mostly stored in rock?
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<span>The biogeochemical cycle that has the least activity because its essential element is mostly stored in rock is the phosphorus cycle. Phosphorus, unlike the other essential elements, is commonly found as a solid. This is why the atmosphere does not play a role in this cycle. Instead, phosphorus remains on land, and is mostly found in rocks and minerals.</span>
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3 years ago
Calculate the volume occupied by 272g
cupoosta [38]

The answer for the following problem is mentioned below.

<u><em>Therefore volume occupied by methane gas is  184.78 × 10^-3 liters </em></u>

Explanation:

Given:

mass of methane(CH_{4}) = 272 grams

pressure (P) = 250 k Pa =250×10^3 Pa

temperature(t) = 54°C =54 + 273 = 327 K

Also given:

R = 8.31JK-1 mol-1 ,

Molar mass of  methane(CH_{4}) = 16.0​  grams

We know;

According to the ideal gas equation,

<u><em>P × V = n × R × T</em></u>

here,

n = m÷M

n =272 ÷ 16

<u><em>n = 17 moles</em></u>

Therefore,

250×10^3 × V = 17 × 8.31 × 327

V = ( 17 × 8.31 × 327 ) ÷ ( 250×10^3 )

V = 184.78 × 10^-3 liters

<u><em>Therefore volume occupied by methane gas is  184.78 × 10^-3 liters </em></u>

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6 0
2 years ago
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