Answer:
0.20moles
Explanation:
1 mole Na contains 23 g Na
23 g Na =1 mole of Na
1 g Na= 1/23 moles of Na
4.6 g Na= 1/23×4.6= 4.6/23=0.2 moles
Therefore 0.2 moles are present in 4.6 g of Na
Answer:
3%
Explanation:
Substract the actual error from the final and multiply by 100
Below is the structure of <span>Arachidonic acid.
</span><span>Arachidonic acid contains a chain of 20 carbon atoms. And there are four double bonds in this chain all having <em>cis-</em> Configurations at position 5, 8, 11 and 14 respectively.</span>
Answer : The correct option is, (B) bimolecular
Explanation :
Molecularity : It is defined as the total number of reactant molecules taking part in the balanced equation of a reaction. It is a theoretical concept.
The given chemical reaction are,
Step (1) :
Step (2) :
Step (3) :
The number of reactants molecules taking part in the balanced equation of a reaction 2 are, .
In this reaction, 1 'I' molecules reacts with the 1 molecule.
Total number of reactant molecule = 1 + 1 = 2
The molecularity of the reaction is 2 that means, the elementary reaction is bimolecular.
Hence, the correct option is, (B) bimolecular
Answer:
atom, ions, protons neutrons, atomic number
Explanation: