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bonufazy [111]
3 years ago
11

What are the number of atoms

Chemistry
1 answer:
Lemur [1.5K]3 years ago
7 0

The Anwser Would be 9

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Why do elements in the same group have a similar reactivity?
katrin2010 [14]
Elements in the same group have the same number of outer-shell electrons or "valence" electrons, so they tend to react similarly, as they can form similar bonds.
4 0
3 years ago
You need 4.0 ounces of a steroid ointment. if there are 16 oz in 1 lb, how many grams of ointment does the pharmacist need to pr
Bond [772]

The given units are the units of masses which are interconvertable.

It is given that:

1 lb = 16 oz

Now, converting kg to lb:

Since, 1 kg = 2.20462 lb

So, \frac{0.0625 lb}{1 oz}\times \frac{1 kg}{2.20462 lb}

Now converting kg to g:

Since, 1 kg = 1000 g

So, \frac{0.0625 lb}{1 oz}\times \frac{1 kg}{2.20462 lb}\times \frac{1000 g}{1 kg} = 28.349 \frac{g}{oz}

For 4 oz:

28.349\frac{g}{oz} \times 4 oz = 113.396 g

Thus, 113.396 g of ointment needed to be prepared by the pharmacist.


6 0
3 years ago
Which of the following aqueous solutions would have the greatest freezing-point depression?
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The greatest aqueous freezing point is (D) 0.10 KCI
7 0
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What is the resulting formula unit when aluminum (Al) and phosphorus (P) bond?
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<span>aluminium phosphide AlP</span>
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Chlorine has seven electrons in its valence shell. It accepts an electron to complete its octet and becomes a chlorine ion (Cl-)
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The correct answer here is B - when chlorine accepts an electron to complete its octet and becomes a chlorion ion it becomes an Anion. An anion is a negatively charged ion. Chloride ions are an important electrolyte within the body.
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