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ipn [44]
3 years ago
14

Why do unicellular organisms live mainly in water?

Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
6 0

Answer:

Unicellular organisms live mainly in water because they need water to live because they need to absorb all their nutrients and give off their wastes.

Explanation:

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Rob measures the solubility of three different salts in water at 22°C. Which type of graph should he use to display his data?. b
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3 years ago
Read 2 more answers
At a certain temperature this reaction follows first-order kinetics with a rate constant of 2.01 s^−1
ddd [48]

Answer:

0.80 seconds (2 significant figures)

Explanation:

The equation of the reaction is given as;

CICH2CH2Cl (g) --> CH2CHCI (g) + HCl(g)

Rate constant (k) = 2.01 s^-1

From the units of the rate constant, this is a first order reaction.

Initial Concentration = 1.34 M

t = ?

Final concentration = 20% of 1.34 = 0.268 M

The integrated rate law for a first order reaction is given as;

ln[A] = ln[A]o - kt

ln(0.268) = ln(1.34) - 2.01(t)

-2.01(t) = - 1.6094

t = 0.8007 ≈ 0.80 seconds (2 significant figures)

6 0
3 years ago
The reaction 2NO(g) + O2(g) → 2NO2(g)
Marina86 [1]

Answer:

could be reduced by one-quarter.

Explanation:

5 0
2 years ago
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