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den301095 [7]
3 years ago
5

What is the difference between a chemical reaction and a physical reaction?

Chemistry
2 answers:
Mice21 [21]3 years ago
8 0
A chemical reaction differs from a physical reaction because a chemical is a change in its genetic makeup which a physical reaction is a change in appearance such as color or form not the make of it.
sleet_krkn [62]3 years ago
3 0
One chemical action is burning wood. One physical action is like cutting paper.
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Convert each of the measurements given to the new unit stated using the factor label method (dimensional analysis). Show all wor
KengaRu [80]
For cm to m, you need to divide by 100 to get m:
26cm/100= 0.26m

For hr to min, you need to multiply by 60 to get min:
4hr x 60= 240min

For km to m, you need to multiply by 1000 to get m:
3.25km x 1000= 3250m

For ft to in, you need to multiply by 12 to get in:
5ft x 12=60in

So we have:
0.26m
240min
3250m
60in


6 0
3 years ago
What would you predict about the reaction of potassium in hydrochloric acid compared to potassium in water?
svlad2 [7]

<span>Define a Potassium Reaction: A Potassium Reaction involves a process in which Potassium is mixed with another substance which react to form something else. Reactions are manifested by the disappearance of properties characteristic of Potassium and the appearance of new properties in the new substance or Compound. The substances initially involved in a reaction are called reactants or reagents. The most important of the Potassium compounds is Potassium chloride (KCl) which is used in the production of fertilizers and chemicals and also as a salt substitute. Other important compounds are Potassium nitrate (KNO3), also known as saltpeter which is used in the production of gunpowder, fertilizers and pyrotechnics and Potassium hydroxide (KOH) is used to make detergents and soaps. Reactions are described with Chemical Formula and Equations.</span>

 
5 0
3 years ago
1. How many elements are in the following equation, FeCrO4 ?<br> 1<br> 2<br> 3<br> 4<br> O
N76 [4]

Answer:

there are 3 different elements in that equation

Explanation:

Fe is the element Iron, Cr is the element Chromium, and O is oxygen

8 0
3 years ago
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Give 3 examples of solutions, suspensions and colloids..
Vlad [161]
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5 0
3 years ago
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Is it posible Count a grain of sand?explain
Alla [95]

Answer:

Yes

Explanation:

As long as its a solid, you can count it. It will be hard, but possible.

5 0
3 years ago
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