4 years ago

Describe the physical and chemical changes that take place during digestion

1 answer:

3 0

Physical: food turns into our feces
Chemical: water turns into urine, food digest,
(honestly I think those are the answers)

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. How many grams of water would require 4400 joules

Alja [10]

Answer:

The specific heat of water is 4.18 J/g C.

Explanation:

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2200

⋅

4.18

⋅

∴

≈

8.0

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3 years ago

If 25.8 grams of BaO dissolve in enough water to make a 212-gram solution, what is the percent by mass of the solution?

Igoryamba

The correct answer is 12.2% BaO.

The solution is found by dividing the mass of the BaO, which is 25.8 grams, by the total mass of the solution, which is 212 grams, then multiplying it by 100 to get the percentage:
$\frac{25.8}{212}*(100) =12.2%$

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3 years ago

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zheka24 [161]

If the cup of water contained hot water. Sugar will dissolve a lot slower if it was in room temperature and even slower if it was in cold water.

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3 years ago

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Shtirlitz [24]

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3 years ago

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FOR 100 PTS

lozanna [386]

Answer:

B.) A hot liquid or air that expands, becomes less dense, and rises or becomes more dense and sinks.

Explanation:

Convention is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

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4 years ago