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saveliy_v [14]
3 years ago
5

What is meant by saying that latent heat of fusion of ice is 3.34*10^5 j/kg?

Chemistry
1 answer:
nikitadnepr [17]3 years ago
7 0

Answer:

when 1 kg ice change phase to water.

it absorb energy 3.34*10^5 j

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The combustion of Ibuprofen C13H18O2 produces water and carbon
prohojiy [21]

Answer:

277.7 g of CO2

Explanation:

Equation of reaction

C13H18O2 + 11O2 ---> 13CO2 + 9H2O

From the equation of reaction

1 mole of ibuprofen produces 13 moles of CO2

Molar mass of ibuprofen is 206g

Molar mass of CO2 is 44g

13 moles of CO2 weighs 572g

Therefore, 100g of ibuprofen will produce (100×572)/206 of CO2

= 277.7g

6 0
3 years ago
What is the difference between a molecular formula and a molecular modle?
ankoles [38]
The molecular formula tell us what elements the atoms are, and how many moles and atoms are attributed toward each element.
The molecular model tells us how the atoms/elements are bonded together.

Molecular formula : CH4

                                  H
                                   l
Molecular model:   H -- C -- H
                                   l
<span>                                  H</span>
3 0
3 years ago
The suns mass is very small compared to earth true or false
KonstantinChe [14]

I believe that is false

7 0
3 years ago
Read 2 more answers
NH4+H2O →NH3+H3O<br><br> Which one is acting weaker base?
Nataliya [291]

Answer:

NH3

Explanation:

In solution, they are in equilibrium. NH4+ acts as a bronsted Lowry acid and donates an H to become NH3, and NH3 acts as a bronsted lowry base and accepts an H. In this pair, NH3 is a weak base, which gets its basic character due to the presence of lone pair of nitrogen and its ability to donate it.

8 0
2 years ago
If you have a 550-gram sample of carbon-14 how much remains after 7 half-lives.
Shtirlitz [24]
Idk but you can try to look it up. On google or somewhere else but yea idk about that one
5 0
4 years ago
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