Answer:
So if we need to react with 88 gm. of copper 2 then at least 3-4 liters.
Explanation:
Answer:
1.015g
Explanation:
From the question,
Mass of Al used = 0.660g
The percentage yield = 63.5%
Mass of Alum used = y
To find the mass of Alum used, do the following:
%yield = Mass of Al /Mass and Alum
65% = 0.660/y
65/100 = 0.660/y
Cross multiply
65 x y = 0.660x100
Divide both side by 65
y = (0.660x100) / 65
y = 1.015g
The mass of alum obtained is 1.015g
Answer:
It is observed that H2 gas gives out 286kJ/m, Methane gives out 802.3kJ/m and hexane gives out 4163kJ/m of heat. They are all exergonic or exothermic reaction but have different values of heat given out. The amount of carbon atom present, is what determines the heat given out, as higher carbon compound like Hexane gave out more heat than Methane and Hydrogen gas have out the least.
Explanation:
A food web shows all of the possible energy pathways through an ecosystem.
Answer is: small animals, insects and seeds originating form nearby land masses come to new volcanic island blown over by winds, crashing on shore pushed by the waves. Birds come easy by flying. They adopt to new enviroment or evolve into the new species. This new species are unique.