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Degger [83]
2 years ago
12

Which alkaline earth metal is the components of quick lime​

Chemistry
2 answers:
rjkz [21]2 years ago
7 0

Answer:

calcium is the alkaline earth metal

geniusboy [140]2 years ago
4 0

Answer:

Calcium

Explanation:

is a silver-gray metal which takes its name from the Latin word calx, which means lime. It is the fifth most abundant element in the earth's crust and is widely distributed as limestone (CaCO3), quicklime (CaO) and calcium fluoride.

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Which 2 elements make up more than 80% of the atoms found in the Earth's crust​
mars1129 [50]

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6 0
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
What are the chemicals used to preserve food and give it color and flavor​
Lelechka [254]

Answer:

Some of the chemicals used to preserve food and give it color are sodium nitrate, sodium benzoate, and propionate

Explanation:

6 0
2 years ago
A gas exerts a pressure of 1.35 atm. What is the equivalent measures in mmHg?
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1.35atm(760mmHg/1atm)=1026mmHg
8 0
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Our solar system consits of eight planets. Which phrase correctly describes a planet?
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B. (twenty characters blah blah blah) Have a great day/night!

8 0
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Read 2 more answers
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