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labwork [276]
3 years ago
11

Balance these equations :

Chemistry
1 answer:
vfiekz [6]3 years ago
6 0

Answer:

  1. H2+O2_____2H20
  2. 2/8 S8_____2S8O3
  3. 2HgO_____2Hg+O2
  4. Zn+2HCl____ZnCl2+H2
  5. 2Na+2H2O___2NaOH+H2
  6. C10H16+4Cl2___5C+8HCl
  7. 4Fe+3O2____2Fe2O3
  8. C6H12O6+2O2___2Co2+2H2O
  9. Fe2O3+3H2____2Fe+3H2O
  10. 2Al+3FeO____Al2O3+3Fe

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The ΔHvap of a certain compound is 49.09 kJ·mol–1 and its ΔSvap is 53.69 J·mol–1·K–1. What is the boiling point of this compound
rusak2 [61]
Hey there !

<span>Convert Joule to KJ :
</span>
1 j ---------------- 0.001 kj
53.69 j ----------- Kj

Kj = 53.69 * 0.001

=>  0.05369 Kj

T = ΔH / <span>ΔS

T = 49.09 / 0.05369

T = 914.32ºC</span>
3 0
3 years ago
A reaction in which a substance reacts with oxygen, emitting heat and forming oxygen-containing compounds is an example of a(n):
yaroslaw [1]

Answer: B) combustion reaction.

Explanation:

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C) precipitation reaction: a reaction in which aqueous solution of two compounds on mixing react to form an insoluble compound which separate out as a solid are called precipitation reactions.

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8 0
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The strongest forces of attraction occur between molecules of(1) HCl (3) HBr(2) HF (4) HI
Alexxandr [17]
It would likely be HF. It displays hydrogen bonding. 
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Afina-wow [57]

Answer:

3 is the answer.

Explanation:

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8 0
3 years ago
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Which of the following most likely happens during a physical change?
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The correct answer is B.

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4 years ago
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