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il63 [147K]
4 years ago
7

When salt is placed on ice the ice melts. explain why?

Chemistry
1 answer:
Licemer1 [7]4 years ago
7 0

Explanation:

When salt is added to ice, salt first dissolves in the film of liquid water that is always present on the surface, thereby lowering the ice's freezing point

please mark as brainliest ,I really need it

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Write the balanced chemical equation for the extraction of iron in the thermite reaction.
blagie [28]

In the given chemical reaction iron is less electropositive metal and aluminum is more electropositive and behave as a reducing agent also.

<h3>What is electropositivity?</h3>

Electropositivity is the ability of an atom of donation or losing of electrons easily.

From the given chemical reaction it is clear that oxidation state of iron changes from +3 to 0 & of aluminum is from 0 to +3. So in the above chemical reaction aluminum is more electropositive than iron metal. And aluminum is behave as a reducing agent as it helps in the reduction process by providing electrons.

Hence aluminum is electropositive metal and reducing agent, iron is less electropositive.

To know more about electropositivity, visit the below link:
brainly.com/question/21819287

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4 0
2 years ago
When organizing your narrative, what are the 3 sections that make up a story (planning the specific order)
Sveta_85 [38]

Answer:

#1 Exposition

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this is right unless you're speaking of theme plot conflict climax falling action or conclusion

3 0
3 years ago
According to the fossil record found in these sedimentary layers, what conclusion can be drawn about the movement of life to lan
Andrei [34K]

<em>A conclusion that can be drawn about the movement of life to land is that;</em>

B.) As land plants became more complex, animal life did as well.

<u>The plants have also adapted to reduce the water loss across cell walls. This is made possible by waxy cuticles.</u>

4 0
3 years ago
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What is the number of moles of potassium chloride present in 148 g of kcl?
OLga [1]
The number of moles of one substance given the amount in mass can be calculated by the use of the molar mass. This is the mass of a compound per 1 mol of the said substance. For, KCl the molar mass is 74.55 g/ mol

148 g / 74.55 g/mol = 2 mol KCl

Hope this answers the question. have a nice day.
3 0
3 years ago
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liraira [26]

Answer:

Organ systems & their main functions

Explanation:

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Endocrine system regulates growth, produces hormones - that target organs via bloodstream.

4 0
3 years ago
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