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leonid [27]
2 years ago
12

Which of the following observations NOT likely describes a chemical change? a A white solid was exposed to ultraviolet light and

turned brown. b Two clear liquids were mixed together and a yellow solid formed c A solid was added to water and the mixture was stirred until the solid was no longer visible d A piece of metal was added to a liquid and bubbles formed on the surface of the metal
Chemistry
1 answer:
kiruha [24]2 years ago
7 0

Answer:

The correct answer would be - c.  A solid was added to water and the mixture was stirred until the solid was no longer visible

Explanation:

Photostabalizing is the process where a solid change its color in the presence of ultraviolet light, it is a chemical change, so the first option would not be the correct answer.

when two liquid or aqueous solutions are mixed together and form a solid substance, this reaction is known as precipitation and it is a chemical reaction too.

When a solid is placed in a liquid and after stirring it makes the solid vanish is a physical change known as dissolving character.

Thus, the correct answer is option C.

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How many forces act on each person? When they put there hands together or High five
EastWind [94]

Answer:

Left and right: two forces

Total: four forces

Explanation:

If it's just the forces that they are using it would be two the force of each person's hand on the other. However there is also gravity pulling down on their hand but they use another force to pull it up which you can call the normal force.

if this helped please hit the thanks button <3

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3 years ago
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Answer:

3. Which side of the chain should you count from when naming organic compounds?

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3 years ago
4. Which metals will be able to reduce copper ions in solution?
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3 years ago
What is the total number of valence electrons in the dot structure of CBr4? Explain how you determined this answer. What is the
Mnenie [13.5K]

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3 years ago
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