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leonid [27]
3 years ago
10

How could you tell what element it is if only a model was present?​

Chemistry
2 answers:
bogdanovich [222]3 years ago
7 0
The number of valence electrons and the number of molecules
andreyandreev [35.5K]3 years ago
5 0
You can look at the number of valence electrons and look at the size of the molecule itself to determine which element in this certain group is shown on the model.
You might be interested in
What elements are being reduced and oxidized in this chemical formula?
dangina [55]

Answer: The element Na (Sodium) is getting oxidized and Hydrogen is getting reduced.

Explanation:

Oxidation reactions are the reactions in which addition of oxygen takes place.

Reduction reactions are the reactions in which loss of oxygen takes place.

For a given reaction:

2Na(s)+2H_2O(l)\rightarrow H_2(g)+2NaOH(aq.)

Sodium is getting oxidized because there is an addition of reaction with that element.

Hydrogen is getting reduced because there is a removal of oxygen with that element.

3 0
3 years ago
Answer number 3 plzz
SCORPION-xisa [38]

Answer:

energy

Explanation:

it is required energy to remove an electron from an atom

7 0
3 years ago
What is the mass of sodium (Na) in 50 grams of table salt (NaCl)? Show your work.
Margaret [11]

Answer:

19 g

Explanation:

Data Given:

Sodium Chloride (table salt) = 50 g

Amount of sodium (Na) = ?

Solution:

Molecular weight calculation:

NaCl = 23 + 35.5

NaCl = 58.5 g/mol

Mass contributed by Sodium = 23 g

calculate the mole percent composition of sodium (Na) in sodium Chloride.

Since the percentage of compound is 100

So,

Percent of sodium (Na) = 23 / 58.5 x 100

Percent of sodium (Na) = 39.3 %

It means that for ever gram of sodium chloride there is 0.393 g of Na is present.

So,

for the 50 grams of table salt (NaCl) the mass of Na will be

mass of sodium (Na) = 0.393 x 50 g

mass of sodium (Na) = 19 g

8 0
4 years ago
Read 2 more answers
Identify the solute and solvent in a dilute aqueous solution of potassium chloride
erastova [34]
Solute=potassium chloride, solvent=water
6 0
3 years ago
Will mark as Brainliest.
8090 [49]

The answer is A) Aluminum chloride - It does not have the prefix "tri-" since it is ionic.

3 0
3 years ago
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