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GenaCL600 [577]
3 years ago
6

How does the hard corals make their skeleton from seawater?

Chemistry
1 answer:
miskamm [114]3 years ago
6 0

Answer:

Small marine animals produce a very hard skeleton made of calcium carbonate, which they extract from the seawater and combine CO2 for limestone.

<em>Hope this helps, please mark brainliest? :))</em>

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A 4.0 L balloon has a pressure of 406 kPa. When the pressure increases to 2,030 kPa, what is the volume? *
elena-14-01-66 [18.8K]

The new volume when pressure increases to 2,030 kPa is 0.8L

BOYLE'S LAW:

The new volume of a gas can be calculated using Boyle's law equation:

P1V1 = P2V2

Where;

  1. P1 = initial pressure (kPa)
  2. P2 = final pressure (kPa)
  3. V1 = initial volume (L)
  4. V2 = final volume (L)

According to this question, a 4.0 L balloon has a pressure of 406 kPa. When the pressure increases to 2,030 kPa, the volume is calculated as:

406 × 4 = 2030 × V2

1624 = 2030V2

V2 = 1624 ÷ 2030

V2 = 0.8L

Therefore, the new volume when pressure increases to 2,030 kPa is 0.8L.

Learn more about Boyle's law calculations at: brainly.com/question/1437490?referrer=searchResults

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3 years ago
What is carbon made up of?
bixtya [17]

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Carbon is made up of one type of atom.

Explanation:

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4 0
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Answer: The answer is B

Explanation: Looking at the table given, the more wire loops you put on the nail, the more paperclips that it can hold. Meaning the electromagnet gets stronger the more loops you put on the nail

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I would say w is the answer

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When calcium chloride is dissolved in water, to which end of the adjacent water molecules will a calcium ion be attracted? the o
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Ca ionises into Ca^2+. Ca^2+ will be attracted to O^2- ions in the water, since opposite charges attract. (Hydrogen in water forms H^+)
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