Yes a physical change can do that. A chemical change is like a burning candal
Liquid solution - oceans
gaseous solution - air
compound - water
colloid - clouds
element - oxygen
C. A person pushing a box across the floor
Answer: 94.07%
Explanation:
Percentage yield can be calculated by the formula
%yield = Experimental yield/Theoretical yield x100
Experimental yield = 7.93g
Theoretical yield = 8.43
%yield = Experimental yield/Theoretical yield x100
%yield = 7.93/8.43 x 100 = 94.07%
<u>Chemical</u>. The copper atoms form new chemical bonds with atoms in the air.
