Answer:
Ans A
Explanation:
no. of shells determine the group
Answer:
H2O molecules are thus able to form an average of 4 H-bonds. H2O has a higher boiling point than NH3 because (i) the H-bonds are stronger and (ii) it contains twice as many H-bonds. H2O has a higher boiling point than HF because it contains twice as many H- bonds, despite these being individually weaker.
Explanation:
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Answer: 20%
Explanation:
Relative error = Absolute error/actual value
= 0.1/0.5
= 0.2
Hence,
Minimum % Relative error = 0.2 ×100%
= 20%
Answer:
Explanation:
All you need to know is the atomic mass of platinum, and Avogadro's number.
2.00g Pt divided by atomic mass gives you the moles of platinum, and multiplying by avogadro's number (6.022 x 10^23) gives you the number of atoms.
Atomic mass of platinum can be found on any periodic table.
Hope this helped.
Answer:
they are a lot tougher and are expecting only greatness, sort of like theater critiques.
Explanation:
