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zysi [14]
2 years ago
10

Calculate the mean rate of reaction when 23 cm of gas is produced in 15 seconds.

Chemistry
1 answer:
katrin2010 [14]2 years ago
3 0

Answer:

1.53 cm/s

Explanation:

Rate = Length/time

        = 23/15

        = 1.53 cm/s

<u>BRAINLIEST?</u>

<u>PRETTY SURE IT IS.</u>

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The diagram shows a model of the nitrogen cycle. which role do plants play in the nitrogen cycle?
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Answer

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Explanation:

They take up usable forms of nitrogen found in soil

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3 years ago
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If 50% of a radioactive element remains after 4000 years, what is the half-life?
ANTONII [103]

Hey there!

A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.

If 50%, or half, of the element remains after 4000 years, that means the half life must be 4000 years.

Hope this helps!

4 0
3 years ago
Part A
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Answer:1.7

Explanation:

6 0
2 years ago
How many grams of S are in 475 g of SO2?
enot [183]

There are 237. 5 g of Sulfur,S in 475 g of SO2?

<h3 />

<h3>Calculation of grams of Sulfur</h3>

From the question, we can say that

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  • The molar mass of oxygen = 16 g/mol

Therefore,

The molar mass for SO2 = 32 + (16 × 2) g/mol  = 64 g/mol

Now,

If 1 mole of SO2 contains 1 mole of S

Then 64 g of SO2, will contain 32g of S;

Such that

475 g of SO2 will give { \frac{ 32g of S) ( 475 g of SO2)}{64 of SO2} }  = 237. 5 g of Sulfur.

Learn more about molar mass here :brainly.com/question/18291695

6 0
2 years ago
How can an atom that has seven valence electrons complete its outermost level
GaryK [48]
It can form a covalent bond with a hydrogen bond that has one valence electron to have eight valence electrons and become stable.
3 0
3 years ago
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