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Harlamova29_29 [7]
3 years ago
5

Why do heated molecules rise? a Because they are less dense than the molecules around them b Because they are moving slower than

the other molecules c Because they are denser than the molecules around them
Chemistry
1 answer:
Volgvan3 years ago
7 0

Answer:

A because they are less dense than the molecules around them

You might be interested in
Decomposition Reactions<br> (pls help!)
melamori03 [73]

15. 1,1,1

16. 1,1,1

17. 1,1,1

18. 1,1,1

19. 1,1,1

20. 1,1,3

21. 2,2,3

22. 2,2,3

23. 1,1,1

24. 1,1,1

25. 2,4,3

26. 2,4,1

You should really learn to do these! They're actually very simple

8 0
4 years ago
1. Write the empirical and graphic formulas of nitric acid and aluminium
Gwar [14]

1. HNO₃ nitric acid

Al(NO₃)₃ aluminium nitrate

You may find the the attached picture the graphical representation of both compounds.

2. You may find bellow the full equations

Explanation:

1.  HNO₃ nitric acid, Al(NO₃)₃ aluminium nitrate

dissociation equation

HNO₃ (l) + H₂O (l) → NO₃⁻ (aq) + H₃O⁺ (aq)

Al(NO₃)₃ (s) + H₂O (l) → Al³⁺ (aq) + 3 NO₃⁻ (aq)

2. molecular equations

Al(OH)₃ (s) + NaOH (aq) →  NaAl(OH)₄ (s)

Ba(OH)₂ (aq) + NiCl₂ (aq) →​ BaCl₂ (aq) + Ni(OH)₂ (s)

ionic equations

Al(OH)₃ (s) + Na⁺ (aq) + OH⁻ (aq) →  NaAl(OH)₄ (s)

Ba²⁺ (aq) + 2 OH⁻ (aq) + Ni²⁺ (aq) + 2 Cl⁻ (aq) →​ Ba²⁺ (aq) + 2 Cl⁻ (aq) + Ni(OH)₂ (s)

Learn more about:

molecular and ionic equations

brainly.com/question/5667289

brainly.com/question/4596590

#learnwithBrainly

4 0
3 years ago
Help me with questions 1-8. here's the link to the textbook
Ede4ka [16]

Answer:

7 gmkrjfjrjgfhgh

Explanation:

bc I'm dum

6 0
3 years ago
You are presented with a white solid and told that due to careless labeling it is not clear if the substance is silver fluoride,
Lerok [7]
Because the solid is soluble in water, it cannot be calcium fluoride.
This leaves us with either silver fluoride or potassium bromide, as both are soluble in water.

Upon addition of sodium sulfate, a white precipitate forms, confirming that the substance was silver fluoride as the precipitate are of silver sulfate.
4 0
3 years ago
which of the following best describes a neutron? A. It is located in the electron cloud and has a negative charge. B. It is loca
Luba_88 [7]

C. It is located in the nucleus and has no charge

Explanation:

here ya go :)

7 0
3 years ago
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