The answer in this question is 4. The required hydrogen (H2) to complete the reduction of 1 mole of (3E,5Z)-3-methylhepta-3,5-dien-1-yne is 4 hydrogen. The number of hydrogen that is require is 4 to complete reduction of 1 mole. Hydrogen is defined as a chemical element with chemical symbol of H and an atonic number of 1, described by the scientist as the most abundant element in the universe.
Your question isn't quite clear, but if you're wondering if a chemical is polar or non-polar, you simply draw a VSEPR sketch and draw arrows where the bonds are. Only draw arrows between atoms, NOT between an atom and a lone pair of electrons. The arrow should point to the most electronegative atom (you should be given an electronegativity scale). Afterwards, you add up the arrows as vectors, and look at the sum of the vectors. If the sum is zero (CH4 is a good example), the chemical is non-polar. If the sum is a vector, the chemical is polar (H2O, or water, is polar).
da multiple choice imo is B.
and also i believe ur correct on the picture but i'm not 100% sure.
The total number of moles of NaOH needed to react : 4
<h3>Further explanation</h3>
Given
Reaction
2NaOH + H2SO4 → Na2SO4 + 2H2O
Required
moles of NaOH
Solution
The chemical reaction coefficient shows the mole ratio of the components of the compounds involved in the reaction, either in terms of reactants or products
From the equation, mol ratio of NaOH and H2SO4 : = 2 : 1, so mol NaOH :
= 2/1 x mol H2SO4
= 2/1 x 2 moles
= 4 moles
You could make the volcano one really fun