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Sever21 [200]
3 years ago
12

Will give most brainly.

Chemistry
1 answer:
Anna [14]3 years ago
8 0

Answer:

One mole

Explanation:

It tells u the concentration

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Question 33 Saved
Tatiana [17]

Answer:

The third option

Explanation:

If people have found more volcanic rock layers in the past that would mean that volcanic activity was more common in the past.

3 0
3 years ago
A solution is prepared by mixing equal volumes of 0.16 M HCl and 0.52 M HNO3. (Assume that volumes are additive.)
slega [8]

Answer:

The pH of the final solution is 0.16 .

Explanation:

The pH of the solution is defined as negative logarithm of hydrogen ion concentration in a solution.

pH=-\log[H^+]

Concentration of HCl = 0.16 M

HCl(aq)\rightarrow H^+(aq)+Cl^-(aq)

HCl is a string acid .1 molar of HCl gives 1 molar of of hydrogen ions.

[H^+]=0.16 M

Concentration of HNO_3 = 0.52 M

HNO_3(aq)\rightarrow H^+(aq)+NO_{3}^-(aq)

Nitric is a string acid .1 molar of nitric acid gives 1 molar of of hydrogen ions.

[H^+]'=0.52 M

Total hydrogen ion concentration:

[H^+]''=[H^+]+[H^+]'

=0.16 M+0.52 M=0.68 M

The pH of the solution:

\pH=-\log[H^+]''=-\log[0.68 M]

pH = 0.16

The pH of the final solution is 0.16 .

3 0
3 years ago
Please help me with these 3 questions with will be giving out brainiest
Anna71 [15]

Answer: All of them are true

5 0
3 years ago
Choose the correct coefficients to balance the following equation: __CaCO3 + __HC; Produces __CaCl2 + __CO2 + __H2O
VARVARA [1.3K]

Answer:

CaCO3 + 2HCl = CaCl2 + CO2 + H2O

Explanation:

CaCO3 + HCl = CaCl2 + CO2 + H2O

Error in equation should be HCl on left hand side not HC

Left Side

Ca = 1

C = 1

O = 3

H = 1

Cl = 1

Right Side

Ca = 1

C = 1

O = 3

H = 2

Cl = 2

So we'll try and balance the Chlorine

CaCO3 + 2HCl = CaCl2 + CO2 + H2O

Left Side

Ca = 1

C = 1

O = 3

H = 2

Cl = 2

Right Side

Ca = 1

C = 1

O = 3

H = 2

Cl = 2

Yay it worked

7 0
3 years ago
Х<br> ¿Cómo separarías la arena y el hierro?
iogann1982 [59]

Answer:

imán

Explanation:

I used google translate idk if thats right

4 0
3 years ago
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