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Tcecarenko [31]
3 years ago
6

Which statement correctly describes the location and charge of the electrons in an atom?

Chemistry
1 answer:
maxonik [38]3 years ago
3 0

Answer:

D

Explanation:

The electrons revolve around the nucleus and they contain negative charge

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How can you use boiling point and solubility properties of a substance to seperate it from a mixture?
zhuklara [117]
Boiling point: the boiling point of compounds are all different. once a compound in a mixture reaches its boiling point, it will evaporate leaving behind the other compound that is yet to reach its boiling point.

if alcohol and water are mixed together, alcohol will boil first leaving behind water, hence water and alcohol have been separated 
8 0
3 years ago
If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react with 101g of K?
Delvig [45]

Mass of F to react with 101 g of K = 49.03 g

<h3>Further explanation </h3>

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

In the same compound, although from different sources and formed by different processes, it will still have the same composition/comparison

With this law, we can calculate how many grams an element is needed to make a compound with a certain mass, as desired

The mass of compounding compounds can also be calculated.

For example, the mass ratio of oxygen (O) and hydrogen (H) elements in H₂O remains at 8: 1. So if you know the amount of mass of oxygen you can know the amount of hydrogen and water mass.

The mass ratio of K to F in a compound is 2.06:1, so the mass of F to react with 101 g of K :

\tt =\dfrac{1}{2.06}\times 101\\\\=\boxed{\bold{49.03~g}}

4 0
3 years ago
A student reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
dybincka [34]

Answer:

Explanation:

C

3 0
3 years ago
Put these atoms in order of increasing radius: Na, Mg,Cl, P
Grace [21]

Answer:

Cl < P < Mg < Na

Explanation:

Cl must have the smallest radius because it is located to the right of the remaining elements on the same row. P  must have the second smallest radius because it is located to the right of the remaining elements on the same  row. Mg must have the Third smallest radius because it is located to the right of Na on the same row.  Therefore, Na has the Largest radius.

I hope it helps.

7 0
3 years ago
The molecular structure of water contains two atoms of hydrogen and one atom of oxygen. When water reaches its boiling point and
Andrews [41]
It turns from a liquid to a gas
7 0
3 years ago
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