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9966 [12]
3 years ago
8

Tropical fish owners must keep the water in the tank from getting too warm or the fish will die. Why is this true?1.) There is t

oo much surface area in the water.2.) The water evaporates too quickly.3.) The dissolution of oxygen increases.4.) The dissolution of the oxygen decreases.
Chemistry
1 answer:
Irina-Kira [14]3 years ago
3 0
Option 4 or the dissolution of the oxygen decreases
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Explanation:

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What causes convection currents in a gas or liquid?​
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4 years ago
The rate constant for a first order reaction
Lena [83]

Answer:

E_a = 103.626 × 10³ KJ/mol

Explanation:

Formula to solve this is given by;

Log(k2/k1) = (E_a/2.303R)((1/T1) - (1/T2))

Where;

k2 is rate constant at second temperature

k1 is rate constant at first temperature

R is universal gas constant

T1 is first temperature

T2 is second temperature

We are given;

k1 = 2.8 × 10^(-3) /s

k2 = 4.8 × 10^(-4) /s

R = 8.314 J/mol.k

T1 = 60°C = 333.15 K

T2 = 45°C = 318.15 K

Thus;

Log((4.8 × 10^(-4))/(2.8 × 10^(-3))) = (E_a/(2.303 × 8.314))((1/333.15) - (1/318.15))

We now have;

-0.76592 = -0.00000739121E_a

E_a = -0.76592/-0.00000739121

E_a = 103.626 × 10³ KJ/mol

8 0
3 years ago
80.0 grams of NaOH is dissolved in water to make a 6.00 L solution what is the molarity of the solution
Elanso [62]

Answer:

0.33 mol/ L

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer will help you. Have a nice day !

3 0
3 years ago
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