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3 years ago

9

What is pollution?when the tip ofaplant is cut, it does not grow tall, why

1 answer:

kakasveta [241]3 years ago

7 0

Answer:

Explanation: the tip of a growing plant contains special rapidly diving cells called apical meristem ,these cells are responsible for increase in the length of the plant . if we cut out these cells ,length growth of the plant will be stunned as these cells are not present anyplace else.

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Calculate the number of moles when 3.00l of a gas at 814 mmhg and 25 °c?

Mariulka [41]

Volume=V=3L
Pressure=P=814mmHg
Temp=T=25°C

So

No of moles=n

$\\ \rm\rightarrowtail PV=nRT$

$\\ \rm\rightarrowtail n=\dfrac{PV}{RT}$

$\\ \rm\rightarrowtail n=\dfrac{814(3)}{25R}$

$\\ \rm\rightarrowtail n=2442/25R$

$\\ \rm\rightarrowtail n=97.7Rmol$

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2 years ago

Draw a resonance structure, complete with all formal charges and lone (unshared) electron pairs, that shows the resonance intera

icang [17]

Answer:see the picture attached

Explanation:

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3 years ago

Write the ions present in a solution of k3po4. express your answers as chemical formulas separated by a comma. offset subscripts

olga55 [171]

K₃PO₄ → 3K⁺ + PO₄³⁻

PO₄³⁻ + H₂O ⇄ HPO₄²⁻ + OH⁻

HPO₄²⁻ + H₂O ⇄ H₂PO₄⁻ + OH⁻

H₂PO₄⁻ + H₂O ⇄ H₃PO₄ + OH⁻

K⁺, PO₄³⁻, HPO₄²⁻, H₂PO₄⁻, OH⁻

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3 years ago

The hydrogen ion concentration of a vinegar solution is 0.00010 m. how is this concentration written in scientific notation? 1.0

insens350 [35]

1.0 x 10^-4 M would be the correct answer

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Read 2 more answers

How do you write the compound Mg3N2? Are Roman numerals included as well?

GREYUIT [131]

Answer:

It is written exactly like that; Mg3N2

Explanation:

Roman numerals are used sometimes to show the charge of an ion that can be multiple charges.

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3 years ago