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masya89 [10]
3 years ago
11

How to determine the actual mass of calcium carbonate you obtained

Chemistry
1 answer:
Veronika [31]3 years ago
6 0

Answer:

The mass of calcium carbonate is the product of molar mass of calcium carbonate in g/mol and the amount of calcium carbonate present in mole

I.e

Mass = amount × molar mass

Explanation:

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What is a climax community? no plagiarism.
tamaranim1 [39]

Answer:

In scientific ecology, climax community or climatic climax community is a historic term for a boreal forest community of plants, animals, and fungi which, through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state.

Explanation:

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Answer:

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3 years ago
Which element in the third period would you expect to have the larger atomic radius, sodium (Na) or Sulfur (S)?
jeyben [28]

<u>Answer: </u>The correct answer is Option B.

<u>Explanation:</u>

The given elements that is sodium and sulfur are the elements which belong to the same period that is third period.

As, the electrons are added up to the same shell across a period, the number of protons also increase and hence, they attract the electrons more effectively. This means that the effective nuclear charge also increases and the size of the sulfur thus shrink and hence, the size (atomic radius) of sodium is the largest amongst third period.

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3 years ago
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If you had 6H2 molecules and 4O2 molecules, how many H2O molecules could you produce?
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Answer:

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7 0
3 years ago
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Since you didn't have any extra information about the question I'll be presenting an example from my own textbooks that I've used.

An example of a direct observation is listening to a cricket chirp at night, and counting the number of chirps per minute.

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