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Gnom [1K]
3 years ago
14

Which two options are examples of waves refecting

Chemistry
1 answer:
sergey [27]3 years ago
8 0

Answer:

A voice echo

Your image in a mirror

Explanation:

hope this helps

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Does the atomic mass of an atom change when an electron is added or removed?
pantera1 [17]

Answer:

election shock u

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3 years ago
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Saponification is a chemical reaction _____. A. due to the presence of a strong organic acid. B. that results in an alcohol and
dezoksy [38]

Answer:

that results in an alcohol and a carboxylic acid.

Explanation:

Saponification is a chemical reaction process of alkaline hydrolysis of esters(R'COOR group) by which soap is obtained.

For Example, when a base such as sodium hydroxide [NaOH]  is used to hydrolyze an ester, the products are a carboxylate salt and an alcohol. Because soaps are prepared by the alkaline hydrolysis of fats and oils.

In a saponification reaction, alkaline hydrolysis of fats and oils with sodium hydroxide  yields propane-1,2,3-triol and the corresponding sodium salts of the component fatty acids.

i.e  Fat or oil + caustic alkali ⇒ Soap + propane-1,2,3-triol

As a specific example, ethyl acetate and NaOH react to form sodium acetate and ethanol:

The reaction goes to completion in the image below:

8 0
3 years ago
Which of the chemical equations is balanced?
Simora [160]

The third equation is properly balanced.

To figure this out, set up tables to check if each element has the same amount on both sides. If you do this for the third equation, copper, hydrogen, oxygen, and nitrogen are all balanced,

The first equation is incorrect due to the fact Iron, Fe, is not balanced on both sides. This is shown by the subscripts given.

The second equation is incorrect as Sulfur is not properly balanced and neither is sodium.

The fourth equation is incorrect as Aluminum is not properly balanced. On the reactants side, Aluminum is 4 while on the products, Aluminum is 8.

Hope this helps!


6 0
3 years ago
Water is a polar solvent. Which of the following will not dissolve in water? (3 points) 3Points A sugar B table salt C vinegar D
jekas [21]

The answer is D Olive Oil

Due to water being a polar substance, and olive oil is a non-polar substance. They will not mix, the olive oil will sink to the bottom of the water and not dissolve.

5 0
3 years ago
Read 2 more answers
Help please i’ll give extra points
joja [24]

Answer:

okay no problem

I will give

7 0
3 years ago
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