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krok68 [10]
3 years ago
11

An ice cube is dropped into boiling water. How will heat flow between the water and the ice cube?

Chemistry
2 answers:
SVETLANKA909090 [29]3 years ago
7 0
Heat transfers from hot body to cold body. So when ice is dropped in water , the water at higher temperature will lose heat energy and is gained by the ice at less temperature. When the Net heat lost equals to Net heat gained i.e.,When both the bodies attain themal equilibrium, the flow of heat energy stops and both attain equal temperatures.
Natasha2012 [34]3 years ago
4 0
On a microscopic (molecular) level, heat flows from the ice to the boiling water
at a minuscule rate, and from the water to the ice at a humongous rate.

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When food spoils, it is a chemical reaction. For example, rancid butter is produced when the fat molecules in the butter undergo
Sergio039 [100]

Answer: Decreases the rate of reaction

  • Remove water from food by dehydration.
  • Transport food in a refrigerated truck.
  • Store food in airtight containers.
  • Store food in a refrigerator after opening.

Does not decrease the rate of reaction

  • Store food in the open air.
  • Place food on a warm surface.

Explanation: Dehydration of food excludes water from food which is one of the factor needed by microorganisms for growth, <em>so it decreaese the rate of reaction.</em>

Transporting food in refrigerated trucks lowers the temperature of food and not many microorganisms are active at very low temperatures, so it <em>decreases the rate of reaction.</em>

Storing food in airtight containers excludes air which is one of the factors required for microbial activity, so <em>it decreases reaction rate.</em>

Storing food in refrigerators after opening also <em>lowers the temperature of food and hence the the rate of microbial activit</em>y.

Storing food in the open air <em>does not decrease microbial activity</em> instead it provides microorganisms with the favorable conditions for their activity such as air and water from water vapor in the air.

Placing food on a warm surface <em>does not decrease rate of reaction</em> because microorganisms are very active in warm and humid environments.

4 0
3 years ago
Hammerhead Shark Process of Sexual Reproduction
ICE Princess25 [194]
I don’t even know that’s just weird
3 0
3 years ago
What are 3 examples of pairs of atoms with polar covalent bonds?​
mezya [45]

Answer:

Water - H2O

Ammonia - NH3

Sulfur dioxide - SO2

Hydrogen sulfide - H2S

Ethanol - C2H6O

Explanation:

Those are some atoms with polar covalent bonds. Hope this helps!!

8 0
4 years ago
5)how many miligrams in a kilogram
jenyasd209 [6]
1 milligram =


.000001000000 kg
8 0
4 years ago
Read 2 more answers
Which of the following reactions is a redox reaction? (a) K2CrO4 + BaCl2 → BaCrO4 + 2KCl (b) Pb2+ + 2Br- → PbBr2 (c) Cu + S → Cu
natima [27]

(c) Cu + S → CuS is a redox reaction

Explanation:

We have the following chemical reactions:

(a) K₂CrO₄ + BaCl₂ → BaCrO₄ + 2 KCl

(b) Pb²⁺ + 2 Br⁻ → PbBr₂

(c) Cu + S → CuS

There is a redox reaction where the elements are changing the oxidation state. The reaction (c) is such a case.

Cu + S → CuS

Cu in elemental state have a oxidation number of 0 and in CuS (copper sulfide) have a oxidation number of +2.

S in elemental state have a oxidation number of 0 and in CuS (copper sulfide) have a oxidation number of -2.

Learn more about:

redox reactions

brainly.com/question/1161855

brainly.com/question/7484802

#learnwithBrainly

7 0
3 years ago
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