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ehidna [41]
3 years ago
12

Lesson 04.01: Chemical vs. Physical Changes and Properties Define and identify chemical and physical properties and changes. Giv

e examples of physical and chemical properties and changes. Compare and contrast chemical and physical properties and changes.
Chemistry
1 answer:
Sonbull [250]3 years ago
8 0

A chemical property and a physical property are related to chemical and physical changes of matter.

Answer: A physical property is an aspect of the matter that can be observed or measured without changing it. Examples of physical properties include color, molecular weight, and volume.

A chemical property may only be observed by changing the chemical identity of a substance.

This property measures the potential for undergoing a chemical change. Examples of chemical properties include reactivity, flammability and oxidation states.


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ziro4ka [17]
I think it is A as solid atoms are close and gases are far away
8 0
3 years ago
Hydrogen has three naturally occurring isotopes which figure into the average atomic mass found on the periodic table (1.00974):
Crank
The most abundant isotope is the isotope with the mass number the closest to the average atomic mass.
4 0
3 years ago
Draw the curved arrow mechanism for the formation of an acetal from acidic methanol and 4-methylpentan-2-one in the fewest steps
morpeh [17]

Answer:

See explanation below

Explanation:

This reaction is known as Ketone hydrolisis in acid medium. This involves the formation of an hemi cetal, and then, the acetal. This is often used to convert ketones or aldehydes in ethers.

The first step involves the reaction with the acid. The carbonile reacts with the acid and forms an alcohol there. The next step is the reaction of the alcohol, in this case, the methanol to form the hemi cetal. Then in the third step, we repeat the first step, using acid to turn the OH group into a great leaving group such water. Then the water leaves the molecule, leaving the space wide open in the next step for methanol, and the acetal is formed.

See picture for the curved arrow mechanism

7 0
3 years ago
Which solution below would turn litmus paper red?
Assoli18 [71]
Litmus paper turns red in acidic conditions whether its blue or red litmus ,its not NH3 (ammonia)  , neither is it barium hydroxide (A)  , sodium hydroxide (B) will make it blue or remain blue (depemding on type of paper used ) so it has to be D which is the chemjcal formula for acetic acid , hope this helps ! 
7 0
4 years ago
Select the correct answer.
Kipish [7]
The answer should be a
8 0
3 years ago
Read 2 more answers
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