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sertanlavr [38]
3 years ago
15

Which of the following is an inference?

Chemistry
1 answer:
Len [333]3 years ago
8 0

Answer:

the answer is d

Explanation:

but wusup shawty

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What did early scientists assume that the polar caps had in common?
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Answer:

They assumed they both had water.

Explanation:

Because they only could look at it through telescopes that were not advanced

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The structural formula of 2-methyl-propane<br>-2-ol​
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ch3c(ch3)(oh)ch3

Explanation:

that should be the answer

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Does anyone know what the formula would be for Rhenium V Biphosphate?
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3 years ago
A helium balloon is filled on the ground where the atmospheric pressure is 768 torr. The volume of the balloon is 8.00 m3. When
Anvisha [2.4K]

Answer:

The correct option is: <u>B. 366 torr</u>

Explanation:

Given: <u>On the ground</u>- Initial Volume: V₁ = 8.00 m³, Initial Atmospheric Pressure: P₁= 768 torr;

<u>At 4200 m height</u>- Final Volume: V₂ = 16.80 m³, Final Atmospheric Pressure: P₂ = ?

Amount of gas: n, and Temperature: T = constant

<u>According to the Boyle's Law</u>, for a given amount of gas at constant temperature:         P₁ V₁ = P₂ V₂

⇒  P₂ = P₁ V₁ ÷ V₂

⇒  P₂ = [(768 torr) × (8.00 m³)] ÷ (16.80 m³)

⇒  P₂ = 365.71 torr ≈ 366 torr

<u>Therefore, the final air pressure at 4200 m height: P₂ = 366 torr.</u>

6 0
3 years ago
Is silicon a compound yes or no​
Crazy boy [7]

Answer: Yes

Explanation: Silicon is never found as a free element naturally, meaning it always occurs with other elements.

4 0
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