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TiliK225 [7]
3 years ago
10

Which of the following elements would you expect to behave most like magnesium?

Chemistry
1 answer:
kvv77 [185]3 years ago
8 0
Calcium. this is because Mg and calcium is in the same group. hence, they have similar chemical properties
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lisov135 [29]
The answer is decomposition
6 0
3 years ago
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If carbon-15 has a half-life of 2.5 seconds, % of the sample would still be
kramer

Answer:

After 5 second 25% C-15 will remain.

Explanation:

Given data:

Half life of C-15 = 2.5 sec

Original amount = 100%

Sample remain after 5 sec = ?

Solution:

Number of half lives = T elapsed / half life

Number of half lives = 5 sec / 2.5 sec

Number of half lives = 2

At time zero = 100%

At first half life = 100%/2 = 50%

At second half life = 50%/2 = 25%

Thus after 5 second 25% C-15 will remain.

8 0
3 years ago
Write a balanced chemical equation for this reaction by completing the reaction below. Add the missing products and coefficients
Pie

To balance a chemical equation you must pay attention that the algebraic equation has the same number of element atoms in reactant and the product.

A chemical equation is a term to refer to the symbolic description of a chemical reaction, that is, the written representation of symbols. For example:

  • 2H₂ + O₂ ---> 2H₂O

The balance of an equation can be related to the law of conservation of matter, that is, the number of atoms of each element in the reactants is in the result.

Note: This question is incomplete, because the information some information is missing.

Learn more in: brainly.com/question/12271256

6 0
2 years ago
In your own words, define the following terms.<br> 1 Blood<br> 2 Lymph<br> 3 Alveoli
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Explanation:

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Answer:

Number 3 alkyne is the answer

Explanation:

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