Answer:
Halogens family
Explanation:
Be familiar with the periodic table
CuSO₄ or Copper Sulfate will be the limiting reagent when the zinc or aluminum was allowed to react with the copper sulfate. Copper Sulfate with the chemical symbol <span>CuSO₄ also known as cupric sulfate or copper sulphate, is used for fungicide. </span>
Mixing the 3 with water would dissolve the salt. Filtration would then yield salt water and a rice/pepper mix on the filter. Evaporation of the salt water would afford dry salt. THe other two are harder being organics - trial and error might lead you to a solvent that would dissolve pepper, but not rice or vice-versa. Filtration and evaporation could be used again, but I have no idea about which solvent to use.
To use chromatography you would need a solvent for all three or a sequence of solvents to sequentially dissolve each component.
Answer: 7.56 moles
Explanation:
C3H8 is the chemical formula for propane, the third member of the alkane family.
Recall that based on Avogadro's number, 1 mole of any substance has 6.02 x 10^23 atoms
So 1 mole of C3H8 = 6.02 x 10^23 atoms
Z moles of C3H8 = 4.55 x 10^24 atoms
To get the value of Z, we cross multiply:
1 x 4.55 x 10^24 atoms = Z moles x (6.02 x 10^23 atoms)
4.55 x 10^24 atoms = Z moles x (6.02 x 10^23 atoms)
To get the value of Z divide both sides by 6.02 x 10^23 atoms
Z moles =4.55 x 10^24 atoms ➗ 6.02 x 10*23 atoms
Hence, Z = 7.56 moles
Thus, the number of propane, C3H8 is 7.56 moles
Answer:
the answer is diamond and graphite
