Which of the following solutions is most concentrated?

30 moles of solute dissolved in 100. mL solvent

20 moles of solute dissolved in 110. mL solvent

40 moles of solute dissolved in 80. mL solvent

50 moles of solute dissolved in 120. mL solvent

Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right

How many atoms or molecules are there in a mole of a substance?

Asubstance that will change shape to fit its container but has a definite volume is in a phase of matter