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ikadub [295]
3 years ago
13

Which point in the digestion of food do nutrients become available to cells

Chemistry
1 answer:
astra-53 [7]3 years ago
7 0
When it is being downed in th3 stomach
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Which of the following represents a chemical property of hydrogen gas?
dexar [7]
It is tasteless and colorless.
5 0
3 years ago
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The radioactive isotope used in the dating of fossils thought to be less than 40,000 years old is ________________.
Fantom [35]

Answer:

The answer is Radiocarbon

8 0
2 years ago
a radio controlled airplane is moving at a velocity of 23 m/s. it accelerates to a velocity of 85 m/s in 9.3 seconds. what accel
tatuchka [14]

I will show you a method to find a velocity of anything:-


Find average velocity when acceleration is constant.

Set up an equation with position and time instead.

Find the distance between the start and end points.

Calculate the change in time.

Divide the total displacement by the total time.

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7 0
3 years ago
Write the Ka expression for an aqueous solution of hydrofluoric acid: (Note that either the numerator or denominator may contain
damaskus [11]

Answer:

Ka = ( [H₃O⁺] . [F⁻] ) / [HF]

Explanation:

HF is a weak acid which in water, keeps this equilibrium

HF (aq)  +  H₂O (l)  ⇄  H₃O⁺ (aq)  +  F⁻ (aq)      Ka

2H₂O (l)  ⇄  H₃O⁺ (l)  +  OH⁻ (aq)   Kw

HF is the weak acid

F⁻ is the conjugate stron base

Let's make the expression for K

K = ( [H₃O⁺] . [F⁻] ) / [HF] . [H₂O]

K . [H₂O] = ( [H₃O⁺] . [F⁻] ) / [HF]

K . [H₂O] = Ka

Ka, the acid dissociation constant, includes Kwater.

4 0
2 years ago
Why neutron doesn't contain any charge?​
zhuklara [117]

Answer:

Neutron does not contain any charge because the charge of the quarks that made up the neutron balances each other out.

Hope it helps.

7 0
1 year ago
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