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Makovka662 [10]
3 years ago
7

I don’t understand this page, can someone help?

Chemistry
1 answer:
cestrela7 [59]3 years ago
8 0

12. V.
13. W.
14. A.
15. R.
16. N.
17. X/Y
18.X/Y
19. M.
20. O.
21. W.
22. I.
23. U.
24. T.
25. P.



————
I believe that is all right
Sorry if not, Gl!
By the way, the ones that are “X/Y”
are the same answer so just put either X or Y.
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PLEASE HELP ME ASAP
Phoenix [80]

Answer:

D.

Explanation:

Water pushing against someone as they wade through a pool is an opposing force.

8 0
3 years ago
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Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid a
abruzzese [7]

Firstly, the <u>complete question </u>would be:

Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction.

NH₃(aq)+HCl(aq)→

<u>Solution:</u>

In this reaction, the hydrogen from the HCl is taken up by ammonia.

So, the balanced chemical reaction would be:

NH₃ (aq) + HCl (aq)  ----> NH₄⁺ (aq)  + Cl⁻ (aq)

The chorine ion (Cl⁻) is the basic, whereas ammonium (NH₄⁺) is the acid.

<h3><u>What are acid- Base reaction ?</u></h3>

Both biology and industrial chemistry depend on acid-base reactions. In addition, we frequently come across acids or bases in our houses, grocery stores, and pharmacies. For instance, antacids are bases whereas aspirin is an acid (acetylsalicylic acid). Actually, every home cook who has made mayonnaise or marinated fish with lemon juice has performed an acid-base reaction. Let's first go over some of the features of these reactions before moving on to the characteristics of acids and bases.

A material is said to be an acid if it dissolves in water to form H+ ions, whereas a substance is said to be a base if it dissolves in water to form OH- ions. In actuality, this is the only set of definitions that could exist. The definitions of acids and bases have evolved significantly as scientists have learned more about them, despite the fact that the general characteristics of acids and bases have been known for more than a thousand years.

To learn more about acid-base reactions, refer to:

brainly.com/question/15220646

#SPJ4

7 0
2 years ago
How will adding NaCl affect the freezing point of a solution?
zaharov [31]
Answer is: adding NaCl will lower the freezing point of a solution. A solution (in this example solution of sodium chloride) freezes at a lower temperature than does the pure solvent (deionized water). The higher the solute concentration (sodium chloride), freezing point depression of the solution will be greater.
7 0
3 years ago
Which term describes this molecular shape?
ICE Princess25 [194]

Answer:

B.) Trigonal planar

Explanation:

This molecule has 3 bonds and no lone pairs. The angles are all 120° and the bonds are within the same plane. These molecules have the molecular shape of trigonal planar.

4 0
2 years ago
What is the oxidation number for CO2
anzhelika [568]

Answer:

+4

Explanation:

The oxidation number of C in carbon dioxide (CO2) is (rules 1 & 2): 0 + (2 x 2) = +4 [Check (rule 3): +4 + 2(-2) = 0] The oxidation number of C in methane (CH4) is (rules 1 & 2): 0 – (4 x1) = -4 [Check (rule 3): -4 + 4(-1) = 0].

7 0
3 years ago
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