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Mrac [35]
3 years ago
7

9. Which indicator would show a pH change from 6 to 7?

Chemistry
1 answer:
expeople1 [14]3 years ago
6 0

Answer:

hi

Explanation:

because

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If 10ml of 1.00M HCI(aq) neutralized 30 ml of an NaOH solution. What was the molarity of the Na OH solution?​
Ahat [919]

Explanation:

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3 years ago
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If there is 25.0 L of gas at a temperature of 350C what is the temperature if the volume increases to 75.0L?
Zielflug [23.3K]

Answer:

The new temperature is 1596 C.

Explanation:

Charles's Law indicates that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases.

Statistically, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the ratio that exists between the volume and the temperature will always have the same value:

\frac{V}{T}=k

Being an initial state 1 and a final state 2, it is fulfilled:

\frac{V1}{T1}=\frac{V2}{T2}

In this case:

  • V1= 25 L
  • T1= 350 C= 623 K (being 0 C= 273 K)
  • V2= 75 L
  • T2= ?

Replacing:

\frac{25 L}{623 K} =\frac{75 L}{T2}

Solving:

T2*\frac{25 L}{623 K} =75 L

T2=75 L*\frac{623 K}{25 L}

T2= 1869 K= 1596 C

<u><em>The new temperature is 1596 C.</em></u>

4 0
3 years ago
What is changed when matter undergoes a physical change?
Furkat [3]
I think its the mass that changes but im not sure
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3 years ago
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Firdavs [7]

Answer:

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Explanation:

4 0
3 years ago
The following equation describes how sodium and chlorine react to produce sodium chloride: 2Na + Cl2 -&gt; 2NaCl Is the equation
DedPeter [7]

Answer:

The equation shows balance.

Explanation:

You can easily count the number of elements on each side.

On the left side of the equation, you have 2 moles of Na and 2 moles of Cl.

On the right side of the equation, you also have 2 moles of Na and 2 moles of Cl because the two elements formed a compound meaning that whatever number is in front of them, both elements will receive the same number.

5 0
4 years ago
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