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2 years ago

Help me please i dont understand

Chemistry

2 answers:

Lelechka [254]2 years ago

6 0

Answer:

1. Dissolving powder in milk - Chemical

- It is chemical because the milk has changed on a molecular level

2. Toasting bread - Chemical

- It is chemical because adding heat to the bread cooks it, therefore

changing it on a molecular level

3. Melting cheese - Physical

- It is physical because the physical appearance was the only change

4. Slicing apples or bannanas - Physical

- It is physical because the physical appearance was the only change

5. Frying an egg - Chemical

- It is chemical because new particles were formed

6. Milk souring - Chemical

- It is chemical because it is forming a new product (lactic acid)

Explanation:

Physical Change occurs when the particles of a substance become rearranged, but do not change into different particles.

Chemical change occurs when a new substance is formed. This process is irreversable.

Dvinal [7]2 years ago

3 0

Answer:

give the preson above brainly bc there right

Explanation:

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Explanation:

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Volume = length × width × height

= (36.0 × 24.0 × 5.0) $cm^{3}$

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Hence, mass of displaced water is as follows.

mass = density × volume

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Mass of water displaced = mass of book + mass of Styrofoam

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Answer:

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