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harina [27]
3 years ago
10

Which substance is a reactant(s) O2 only MgO only Mg and O2 Mg only

Chemistry
1 answer:
Alchen [17]3 years ago
8 0
Reactants in all these elements are Mg and O2
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What is the molarity of the solution formed by mixing 0.20mol of sodium hydroxide with enough water to make 150 ml of solution?
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C) Mercury is solid at room temperature....True Or False<br>​
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Number of moles in 1.806*10^22 molecules of nitrogen
Fynjy0 [20]
Hi there!

• Avogadro's number = 6.023 × 10²³
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It's known that :-

Number of molecules = Moles × Avogadro's number

=> 1.806 × 10²² = Mol. × 6.023 × 10²³

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=> Moles = 0.03 mol.

Hence, 0.03 mol. is th' required answer.

~ Hope it helps!
3 0
3 years ago
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