Elements and compounds are two types of substances ( I think). An element is any material made up of one type of atom- there could be multiples of this atom though for example oxygen which has a formula of 02. A compound is a substance made up of more than one type of atom for example H2O
Hope this helped! :)
Answer:
true
Explanation:
A wave with a higher frequency has a longer wavelength
Answer:
It is caused by currents of electricity that flow in the molten core.
Answer: 100.8L
Explanation:
1mole of O2 occupies 22.4L at stp
Therefore, 4.5 moles of O2 will occupy = 4.5 x 22.4 = 100.8L
