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Firdavs [7]
3 years ago
13

Is the average speed of the molecules less in cold coffee or hot coffee? Explain.

Chemistry
2 answers:
Marizza181 [45]3 years ago
7 0

Answer:

Cold coffee

Explanation:

The higher the temperature of something, the more kinetic energy it will have. The colder coffee's molecules will have less kinetic energy than the hot coffee's molecules

Vesnalui [34]3 years ago
5 0

Answer:

In cold coffee.

Explanation:

"As heating can make a cold coffee to hot coffee, the average speed of the molecule is less in cold coffee than hot coffee"

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Explanation:

A distant luminous object travels rapidly away from an observer.

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2 years ago
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This shoes the soda lime defusing to limewater turning into germinating seeding which defuses back to limewater

Explanation:

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3 years ago
Explain the similarities and differences between putting a beaker of ethanoic acid in the refrigerator and mixing it with sodium
frez [133]

Answer:

See explanation

Explanation:

When a beaker of ethanoic acid is placed in the refrigerator, its temperature drops and the vessel feels cool.

Now, when we mix ethanoic acid and sodium carbonate, an endothermic reaction occurs, fizzing is observed as carbon dioxide is given off and heat is lost to the surroundings causing the reaction vessel to feel cool to touch.

The difference between putting ethanoic acid in the refrigerator and adding  sodium carbonate to the solution is that, in the former, no new substance is formed. The substance remains ethanoic acid when retrieved from the refrigerator. In the later case, new substances are formed. The substance is no more ethanoic acid because a chemical reaction has taken place.

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3 years ago
Why is water water and not dirt and why is air also water?
AleksAgata [21]
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7 0
3 years ago
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ki77a [65]

Answer:

We'll have 82 moles ZnO and 41 moles S

Explanation:

Step 1: data given

Number of moles Zinc (Zn) = 82 moles

Number of moles sulfur oxide (SO2) = 42 moles

Step 2: The balanced equation

2Zn + SO2 → 2ZnO + S

Step 3: Calculate the limiting reactant

For 2 moles Zinc we need 1 mol sulfur oxide to produce 2 moles zinc oxide and 1 mol sulfur

Zinc is the limiting reactant. It will completely be consume (82 moles). Sulfur oxide is in excess. There will react 82/2 = 41 moles

There will remain 42-41 = 1 mol SO2

Step 4: Calculate moles of products

For 2 moles Zinc we need 1 mol sulfur oxide to produce 2 moles zinc oxide and 1 mol sulfur

For 82 moles Zinc we'll have 82 moles of Zinc Oxide (ZnO)

For 82 moles Zinc we'll have 82/2 = 41 moles of sulfur

We'll have 82 moles ZnO and 41 moles S

5 0
3 years ago
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