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Andreas93 [3]
3 years ago
14

1. Air shows the property of a) N b) 02 c) Both a) and b) d) None of these

Chemistry
2 answers:
kupik [55]3 years ago
6 0

Answer:

c) Both a) and b)

Explanation:

please mark me brainliest

n200080 [17]3 years ago
5 0

Answer:

o2

Explanation:

because it shows the property of air

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3 years ago
A chemist adds 0.60L of a 0.20/molL sodium thiosulfate Na2S2O3 solution to a reaction flask. Calculate the millimoles of sodium
Serggg [28]

Answer:

1.2×10² mmole of Na₂S₂O₃

Explanation:

From the question given above, the following data were obtained:

Volume = 0.6 L

Molarity = 0.2 mol/L

Mole of Na₂S₂O₃ =?

Molarity is simply defined as the mole of solute per unit litre of water. Mathematically, it is expressed as:

Molarity = mole /Volume

With the above formula, we can obtain the number of mole of Na₂S₂O₃ in the solution as illustrated below:

Volume = 0.6 L

Molarity = 0.2 mol/L

Mole of Na₂S₂O₃ =?

Molarity = mole /Volume

0.2 = Mole of Na₂S₂O₃ / 0.6

Cross multiply

Mole of Na₂S₂O₃ = 0.2 × 0.6

Mole of Na₂S₂O₃ = 0.12 mole

Finally, we shall convert 0.12 mole to millimole (mmol). This can be obtained as follow:

1 mole = 1000 mmol

Therefore,

0.12 mole = 0.12 mole × 1000 mmol / 1 mole

0.12 mole = 120 = 1.2×10² mmole

Thus, the chemist added 1.2×10² mmole of Na₂S₂O₃

7 0
3 years ago
What are twoparts of an atom
Leto [7]
The answer is neutrons and protons.

Hope you got it!!
6 0
3 years ago
What is the concentration of a solution?​
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The concentration of a substance is the quantity of solute present in a given quantity of solution.

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Answer:

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3 0
3 years ago
Read 2 more answers
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