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likoan [24]
2 years ago
15

What cause a mass defect?

Chemistry
2 answers:
Gelneren [198K]2 years ago
5 0

Answer:

The answer is C.

Explanation:

Mass is converted to the energy binding a nucleus together.

xenn [34]2 years ago
3 0

Answer: Mass is converted to the energy binding a nucleus together.

Explanation: a p e x

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When you see the word heptahydrate, what number should be written in front of the formula for water? 5 6 7 8?
Yuki888 [10]
Hept for 7, hence the number is seven.
8 0
3 years ago
a 10.99g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition (define proportions), how many g
leonid [27]

Given :

A 10.99 g sample of NaBr contains 22.34% Na by mass.

To Find :

How many grams of sodium does a 9.77g sample of sodium bromine contain.

Solution :

By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.

Therefore , percentage of Na by mass in NaBr will be same for every amount .

Percentage of Na in 9.77 g NaBr is 22.34 % too .

Gram of Na = 9.77\times \dfrac{22.34}{100}=2.18\ g .

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3 years ago
Which of the following electron configurations for neutral atoms is correct?
geniusboy [140]
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8 0
3 years ago
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Which of the following is NOT how compounds are formed?
cricket20 [7]
Compounds are not formed by accepting electrons. Number 1 and 3 are correct.
5 0
3 years ago
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What is the activity of a 52.3 μCi sample of carbon‑14 in becquerels?
Llana [10]

Answer:

1935100 Bq

Explanation:

Let us recall that:

If 1 μCi can be equivalent to 37000 Bq

Then; the activity of 52.3 μCi will be:

\dfrac{37000 \ Bq}{1 \ \mu Ci}\times 52.3 \ \mu Ci  \\ \\  \\ \\ \mathbf{= 1935100 \ Bq}

3 0
3 years ago
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