Lithium heparin tube i think, could be wrong but i think this is right.
Answer: you can use a strainer
Explanation:
Electronegativity
Atomic radius
Ionization energy
Answer:
7.71x10^23 molecules
Explanation:
Avogadro's # = 6.022x10^23
1.28 mol SiO2 x 6.022x10^23/ 1 mol SiO2 = 7.71x10^23 molecules
1 mol of formic acid is correct. There are two oxygen atoms in formic acid, compared to just one for the other molecules.