Maybe you could study their traits and how they live such as what they eat how they live or how they build there homes and their instincts or you could look at the markings like ducks feet are webbed can other birds feet be webbed what kind of colors do they have eyes body parts such as wings or extra body parts I'm sorry if this is not what you are looking for I'm new to this
A graduated cylinder, it measures the exact amount of liquid used.
Electrons and protons because they are essentially always the same
There is a shortcut to this Chem question. simply look at this problem as if it were a cooking recipe. you have 7 parts Carbon and 18 Parts Hydrogen for a total of 25 parts. Simply divide 5.2 by 25 then multiply by 7 to get your answer.
(5.2/ 25) 7 = 1.456 moles
