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sergejj [24]
3 years ago
5

classify the following compounds as ionic (metal + nonmetal) , covalent (nonmetal + nonmetal) or both (compound containing a pol

y atomic ion)

Chemistry
1 answer:
Savatey [412]3 years ago
7 0

Answer:

11. ionic

12. both

13. covalent

14. ionic

Explanation:

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Can u please help me I don't understand it and if I don't do it my teacher will get really mad at me pleas
Nana76 [90]

Physical Change: It is a type of change in which matter changes its physical state like shape, size but is not transformed into another substance. It is usually a reversible process.

Chemical Change: It is a type of change in which the rearrangement of atoms of one or more than one substance is involved.  and it changes its chemical composition that is there is a formation of at least one new substance. It is usually an irreversible process.

Now, keeping in mind the definitions, we can easily classify the examples in the question as physical or chemical change.

7. Chemical Change

8. Chemical Change

9. Physical Change

10. Chemical Change

11. Physical Change

12. Physical Change

13. Chemical Change

14. Physical Change

15. Chemical Change

16. Physical Change

17. Chemical Change

18. Chemical Change

19. Physical Change

20. Physical Change

21. Chemical Change

22. Physical Change

23. Chemical Change

24. Chemical Change

25. Physical Change

6 0
3 years ago
Which of these elements is the most ductile?
Inessa05 [86]
The answer is going to be mercury
8 0
2 years ago
Read 2 more answers
When an electric current passes through water, _____ takes place, breaking down the compound into hydrogen and oxygen. a physica
PSYCHO15rus [73]
Electrolysis takes place when an electric current passes through water.
5 0
3 years ago
Read 2 more answers
A solution was prepared by mixing 50.0 g
frez [133]

Answer:

4.78 %.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em></em>

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of MgSO₄ = 50.0 g,

mass of water = d.V = (0.997 g/mL)(1000.0 mL) = 997.0 g.

mass of the solution = mass of water + mass of MgSO₄ = 997.0 g + 50.0 g = 1047.0 g.

<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (50.0 g/1047.0 g) x 100 = <em>4.776 % ≅ 4.78 %.</em>

4 0
3 years ago
101.325 kPa = 760 mmHg. So, 25.0 kPa is
gogolik [260]
101.325 kPa = 760 mmHg.
So, 25.0 kPa is 187.515 mmHg
5 0
3 years ago
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