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masya89 [10]
3 years ago
8

1. Which of these has only one component?

Chemistry
1 answer:
Phantasy [73]3 years ago
8 0
1. Element
2. Sugar and window cleaner
3. Heterogeneous mixture.
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A container with a volume of 893L contains how may moles of air at STP?
Vadim26 [7]

Answer:

i think 54

Explanation:

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3 years ago
Based on the parameters set forth in your lab procedure, what is the ph you should observe when you added the hcl to water?.
Rzqust [24]

Acid has a pH below 7 while water has a pH of 7. A strong acid with a pH of roughly 3, HCl is. Water gets more acidic and loses pH in the range of 4-5 when HCl is added to it.

<h3>What is pH?</h3>

A substance's pH is a gauge of how basic or acidic it is. It is a measurement of the amount of H+ present in the solution. It is equivalent to the negative logarithm of the concentration of H+ ions mathematically.

A solution is acidic if its pH value is less than 7, and basic if it is greater than 7. Acids have a lower pH because they contain more H+ ions. Strong acid hydrochloric acid has a pH between 2 and 3.

Water has no charge. Water becomes acidic in pH if any acid is introduced. Therefore, if HCl is given to water, the pH of the water will change to 3-5 depending on the acid content.

To find more on pH refer here:

brainly.com/question/491373

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6 0
11 months ago
Students in a lab used a hot plate to boil water. Which of the following illustrations best represents the change in the movemen
Digiron [165]

The second illustration is the best representation of the change in the movement of particles as the temperature of the water changes.

<u>Explanation:</u>

The second option perfectly represents the boiling of water. As when the temperature is increased, the water molecules gain energy to move faster, thus their kinetic energy of the atoms will be more. This will lead to more freely movement of all the atoms of the water.

And as boiling leads to transformation from liquid state to gaseous state, so the increase in the distance between atoms and molecules occurs in the gaseous state. Thus, the second illustration is best suitable for representing the boiling of water.

As on increasing temperature of the water, the distance between the molecules is increasing in the second illustration while the other illustration shows the decrease in the distance between the molecules. So, the second illustration is the best representation of the change in the movement of particles as the temperature of the water changes.

6 0
3 years ago
What charge would you expect for an formed by P?
Alex73 [517]

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friend according to the question the answer is +3 ....

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How many calories is 52 J of energy?
just olya [345]

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1J = 0.238846cal

52J = 12.42cal

5 0
3 years ago
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