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crimeas [40]
3 years ago
6

Are the cells in this image prokaryotic or eukaryotic

Chemistry
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

Prokaryotic is the answer!

Explanation:

I know this because, the nucleolus is absent in the image.

PLZ MARK AS BRAINLIEST! HOPE THIS HELPS! :)

ps: i have the same profile photo lol, love it!

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A buffer is made by dissolving H3PO4 and NaH2PO4 in water.
xeze [42]

Answer:

(a) H₃O⁺(aq) + H₂PO₄⁻(aq) ⟶ H₃PO₄(aq) + H₂O(ℓ)

(b) OH⁻(aq) + H₃O⁺(aq) ⟶ 2H₂O(ℓ)

Explanation:

The equation for your buffer equilibrium is:

H₃PO₄(aq) + H₂O(ℓ) ⇌ H₃O⁺(aq)+ H₂PO₄⁻(aq)

(a) Adding H₃O⁺

The hydronium ions react with the basic dihydrogen phosphate ions.

H₃O⁺(aq) + H₂PO₄⁻(aq) ⟶ H₃PO₄(aq) + H₂O(ℓ)

(b) Adding OH⁻

The OH⁻ ions react with the more acidic hydronium ions.

OH⁻(aq) + H₃O⁺(aq) ⟶ 2H₂O(ℓ)

4 0
3 years ago
Read 2 more answers
What is the age of mummified primate skin that contains 8.25% of the original quantity of 14C?
rjkz [21]

Answer:

20619.4793 years

Explanation:

The half life of carbon-14 = 5730 years

The formula for the half life for a first order kinetic reaction is:

t_{1/2}=\frac {ln\ 2}{k}

Where,  

t_{1/2} is the half life

k is the rate constant.

Thus rate constant is:

5730 years=ln(2)/k

k = 1.21×10⁻⁴ years ⁻¹

Using integrated rate law as:

ln\ \frac {A_t}{A_0}=-k\times t

Where,

A_t is the concentration at time t

A_0 is the initial concentration

Given that the final concentration contains 8.25 % of the original quantity which means that:

\frac {A_t}{A_0}=0.0825

So,

ln(.0825)= -1.21×10⁻⁴×t

<u> t = 20619.4793 years</u>

<u></u>

8 0
3 years ago
Why are most household items made up of oxygen?
Alchen [17]
It is in our atmosphere
5 0
3 years ago
Help Ill give you the brainiest answer thing please just give me the right answer
yaroslaw [1]

Answer:

the 3rd one

Explanation:

5 0
3 years ago
Read 2 more answers
Which type of heat island is
icang [17]

Answer:

a fast moving heat island

Explanation:

cause there is a high amount of heating molecule produced.

3 0
2 years ago
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