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Taya2010 [7]
3 years ago
5

Will reward brainliest !!!

Chemistry
2 answers:
Anna [14]3 years ago
8 0
The best answer choice here would be 'Combination'
stiv31 [10]3 years ago
7 0

Answer:

The answer is B. combination

Explanation:

Well honestly its the only one that fits and makes sense, you can try saying the sentence with each of the words and see which fits the best.

hope this helped!

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1. Take 100ml of water as solvent and boil it few minutes.
2. Now add one tea spoon sugar, one tea spoon tea leaves and 50ml of milk. Here sugar, tea leaves and milk are solute.
3. Now boil it again for few minutes so that sugar will dissolves in solution as sugar is soluble in water
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How many grams are in 3.21 x 1024 molecules of potassium hydroxide?
MakcuM [25]

Answer:

3287.04 grams

Explanation:

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What are your main fears about this class (if any)?​
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3 years ago
A city's water supply is contaminated with a toxin at a concentration of 0.63 mg/L. For the water to be safe for drinking, the c
Shalnov [3]

Answer:

Approximately 22.37 days, will it take for the water to be safe to drink.

Explanation:

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

k is rate constant

Given that:- k = 0.27 (day)⁻¹

[A_0] = 0.63 mg/L

[A_t]=1.5\times 10^{-3} mg/L

Applying in the above equation as:-

1.5\times 10^{-3}=0.63e^{-0.27\times t}

63e^{-0.27t}=150\times \:10^{-3}

e^{-0.27t}=\frac{1}{420}

t=\frac{100\ln \left(420\right)}{27}=22.37

<u>Approximately 22.37 days, will it take for the water to be safe to drink.</u>

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3 years ago
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