Milk mixture and heterogeneous
It is B balance, because it has a 0,01 g divisions scale. The minimun division in A balance is only 0,1 g, i.e, decigram measurement.
Answer:
B
Explanation:
it flows by the conduction currents
Answer:
2,47 *
(molecules)
Explanation:
Avogadro's number is a very important relationship: 1 mole = 6,02 *
atoms, molecules, protons, etc.
To convert from moles to molecules, multiply the molar amount by Avogadro's number.
4,1 mol * 6,02 *
≈ 24,7 *
= 2,47 *
(molecules)
Therefore the third answer is correct