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Orlov [11]
3 years ago
10

What is the name of the compound Sr3N2?

Chemistry
1 answer:
nadezda [96]3 years ago
5 0
The answer is Strontium Nitride
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The halogens are in Group 7 of the periodic table.
Kaylis [27]

Answer:

Explanation:

When it comes to the trend of reactivity in halogens, the reactivity decreases down the table. This is because in the nucleus of the atoms (mix of protons and neutrons), there is less of an attraction of the protons to the electrons on the outer shell, which gets further away going down. Since halogens are non metals, they need to gain electrons to become stable, and so this lesser attraction to the electrons may not allow this at least immediately. Fluorine is the most reactive out of all, have less of its outer shells and so being able to react much quickly.

6 0
3 years ago
A sample of c3h8 has 4.56 Ã 1024 h atoms. how many carbon atoms does the sample contain?
m_a_m_a [10]
Answer is: there is 1,368·10²⁵ atoms of carbon.
N(C₃H₈) = 4,56·10²⁴.
From molecular formula: in one molecule of propane there is three atoms of carbon:
N(C) = 3 · 4,56·10²⁴.
N(C) = 1,368·10²⁵.

8 0
3 years ago
The Description giving is a list of ______ properties of the shoe
Colt1911 [192]

Answer:

D

Explanation:

7 0
3 years ago
Assuming the compound is dissolved in water what is the formula for phosphorus acid?
Alik [6]
I guess B but not sure
7 0
3 years ago
Need some help with this Chem Question :)
Kruka [31]

Answer:

Mg + Fe(NO₃)₂ —> Fe + Mg(NO₃)₂

Explanation:

The activity series helps us to easily define whether or not a reaction will occur.

Elements at the top of the activity series are highly reactive and will always displace those at the bottom of the series in any reaction.

With the above information in mind, let us answer the questions given above.

Ag + NaNO₃ —> Na + AgNO₃

The above reaction will not occur because Na is higher than Ag in the activity series. Thus, Ag cannot displace Na from solution.

Pb + Mg(NO₃)₂ —> Pb(NO₃)₂ + Mg

The above reaction will not occur because Mg is higher than Pb in the activity series. Thus, Pb cannot displace Mg from solution.

Mg + Fe(NO₃)₂ —> Fe + Mg(NO₃)₂

The above reaction will occur because Mg is higher than Fe in the activity series. Thus, Mg will displace Fe from solution.

Cu + Mg(NO₃)₂ —> Cu(NO₃)₂ + Mg

The above reaction will not occur because Mg is higher than Cu in the activity series. Thus, Cu cannot displace Mg from solution.

From the above illustration, only

Mg + Fe(NO₃)₂ —> Fe + Mg(NO₃)₂

Will occur.

5 0
3 years ago
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