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77julia77 [94]
3 years ago
15

Anyone know how to do this?

Chemistry
1 answer:
castortr0y [4]3 years ago
4 0

Answer:

nah

Explanation:

just ignore this for now I don't know but it wants me to answer stuff

You might be interested in
What is the gravitational potential energy of a box that is 2.9 m off the ground and a mass of 12.5 kg? * 20 points
Andru [333]

Answer:

362,5J

Explanation:

formula for calculating Gravitational Potential Energy is mass×gravitational field strength ×height

12.5×10×2.9=362,5J

6 0
3 years ago
Select the pH value you would expect for each of these solutions. an aqueous solution of HNO3 an aqueous solution of NaCl an aqu
Neko [114]

Answer:

An aqueous solution of HNO_3 will be an acid and have a pH of less than 7.

An aqueous solution of NaCl will be a neutral solution and have a pH equal to 7.

An aqueous solution of NaOH will be an base and have a pH of more than 7.

Explanation:

pH is defined as the negative logarithm of the concentration of hydrogen ions.

Thus,  

pH = - log [H⁺]

pH scale generally runs from 1 to 14 where pH = 7 represents neutral medium, pH < 7 represents acidic medium and pH > 7 represents basic medium.

Thus,

<u>An aqueous solution of HNO_3 will be an acid and have a pH of less than 7.</u>

<u>An aqueous solution of NaCl will be a neutral solution and have a pH equal to 7.</u>

<u>An aqueous solution of NaOH will be an base and have a pH of more than 7.</u>

4 0
4 years ago
Read 2 more answers
When he carried out his experiment, Nathan found that he had three small
Ann [662]

I think it's either B or D

Explanation:

it really depends on how differently shaped the beakers are sorry if this doesn't help very much

3 0
3 years ago
Which pair of substances would most likely result in the production of a gas when reacting with an acid?
vovangra [49]

Answer: metal and carbonate

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions (OH^-) when dissolved in water and an acid is defined as a substance which donates hydrogen ions (H^+) in water.

An acid is represented as :

HX\rightarrow H^++X^-

1. When metal is treated with an acid such as HCl, if the metal is more reactive than hydrogen displaces hydrogen from its salt solution and thus produce zinc chloride and hydrogen gas.

M+xHCl(aq)\rightarrow MCl_x(aq)+xH_2(g)

2. When carbonates are treated with acid, double displacement takes place ad carbon dioxide is released as a gas.

MCO_3(aq)+xHCl(aq)\rightarrow MCl_x(aq)+xH_2O(l)+CO_2(g)

7 0
4 years ago
Read 2 more answers
How an atom chemically behaves when it comes into contact with other?
nlexa [21]
It is determined by its ELECTRIC CONFIGURATION.
5 0
3 years ago
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