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Ket [755]
3 years ago
6

Food undergoes both physical and chemical changes during digestion. Which of the parts of the digestive process listed below is

a physical change that takes place in the mouth?
enzymes break down starch into simple sugars

chewing breaks food into smaller pieces.
HELP!
Chemistry
2 answers:
Ipatiy [6.2K]3 years ago
8 0

Answer:

1) chewing breaks food into smaller pieces.

Explanation:

Chewing food changes the <u><em>PHYSICAL </em></u>appearance. The sugars in the other possible answer will completely change the composition of the food. So therefore, chewing breaks food into smaller pieces, is correct.

ioda3 years ago
4 0
Yea its chewing i think so
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DENIUS [597]

Number of ions in the third beaker:

4 Cl⁻ ions

5 Na⁺ ions

1 OH⁻ ion

Explanation:

If you mix the backers the following chemical reaction will occur:

HCl + NaOH → NaCl + H₂O

In the ionic form you write the equation:

H⁺ (aq) + Cl⁻ (aq) + Na⁺ (aq) + OH⁻ (aq) → Cl⁻ (aq) + Na⁺ (aq) + H₂O (l)

where:

(aq) - aqueous (dissolved in water)

(l) - liquid

Number of ions in the first beaker:

4 Cl⁻ ions

4 H⁺ ions

Number of ions in the second beaker:

5 Na⁺ ions

5 OH⁻ ions

Number of ions in the third beaker:

4 Cl⁻ ions

5 Na⁺ ions

1 OH⁻ ion

The rest of H⁺ and OH⁻ ion reacted to form water.

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State of water with high energy that's takes the sale and volume of it's container
Wewaii [24]
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4 years ago
What is the mass of 975 mL of mercury? Its density is 13.5 g/mL
miss Akunina [59]

Answer:

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Explanation:

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tangare [24]
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Hope this help!


6 0
4 years ago
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