Which of the following is a product when Na2O and H2O react together? (2 points)
2 answers:
Answer : The correct option is, (c) NaOH
Explanation :
Synthesis reaction : It is chemical reaction in which two or more reactants react together to form a single compound or a product.
For example : Formation of sodium chloride salt from sodium and chlorine.
The balanced chemical reaction will be,
This reaction is a synthesis reaction.
Hence, the product form in this reaction is, NaOH.
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Answer : The molecule of ethane present in 64.28 L of ethane gas at STP is, molecule.
Solution :
At STP,
22.4 L volume of ethane present in 1 mole of ethane gas
64.28 L volume of ethane present in of ethane gas
And, as we know that
1 mole of ethane molecule contains molecules of ethane
2.869 moles of ethane molecule contains molecules of ethane
Therefore, the molecule of ethane present in 64.28 L of ethane gas at STP is, molecule.