Answer:
6
Explanation:
Formula: Al2O3
If we require 2Al2O3
We divide 2 by 3
Sorry for the shadow of phone and fingers.
When the concentration is expressed in percentage, you simply have to divide the amount of substance to the total amount of the mixture, then multiply it by 100. In this case, when you want to find the percentage of P in the sample, the solution is as follows:
%P = 7.5 g/100 g * 100 =<em> 7.5%</em>
The Sun is what's known as a star - a star is formed when large amounts of matter are pulled together by each other's gravity and the temperature reaches a point where nuclear reactions can start happening. In our sun, what's happening is that hydrogen is being fused into other atoms such as helium. Doing this lets off a large amount of heat and light.
Is that decent?
