Answer:
In styrene, there is a phenyl group which is electron-withdrawing. So the electronic density in the double bonds increases, hence easy to associate as monomers. While in methoxystyrene, there is a carbonyl group which is not electron deficient. so no easy association with monomers.
Explanation:
Answer:
It has 4 significant figures
Explanation:
Notice the use of scientific notation to indicate that there are two zeros which should be significant. If this number were to be written without scientific notation (3,200,000,000) the significance of those two zeros would be lost and you would - wrongly - say that there were only two significant figures.
The reaction between zinc and hydrogen gas is:
Zn + H₂ → ZnH₂
So for every 1 mole of H₂ gas, it needs 1 mole of Zinc. The atomic weight of H2₂ is 2 g/mol, and Zinc is 67.425 g/mol. The density of H₂ at atmospheric pressure and at 293 K is 0.00016 g/mL. The solution is as follows:
Mass = Density*Volume = (0.00016 g/mL)(150 mL) = 0.024 g H₂
Moles H₂ = 0.024 g H₂ * 1 mol/2 g = 0.012 mol H₂
Thus, it also needs 0.012 mol Zn.
Mass of Zn needed = 0.012 mol * 67.425 g/mol = <em>0.8091 g Zn</em>
Reactants Na and O₂
Products Na₂0
Explanation:
Na + O₂ ⇒ Na₂0
The reactants are the species on the left hand side of chemical equations.
The products are the species on the right hand side of chemical equations.
A chemical equations shows the process of a chemical change in which reactants combines to give a desired product.
The above reaction is a synthesis or combination reaction in which a reactants combines to give products.
Species that are combining are called reactants
Species that are formed are the products.
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Reactants brainly.com/question/4216541
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