When Newlands tried to create a periodic table, his tried to conform to the "Rule of Octaves" he had discovered. He had the right idea, in that if you arrange the elements by atomic weight there would be similarities every 7 elements (not 8 because noble gases hadn't been discovered yet) but he tried to push this rule so much that he would put multiple elements in the same box to try to keep the rule. Mendeleev, however, left gaps in this table for undiscovered elements, which paved the way for our modern periodic table.
Answer:
the first.
Explanation:
Newton's law of universal gravitation, in part, states that every particle attracts every other particle in the universe.
Calcium would be more reactive because it is closer to francium on the periodic table, francium is the MOST reactive element.
There are two ways to represent the chemical formula of a substance: in condensed form or in structural form. Ethane is an alkane which consist of two carbon atoms. Since the general formula for ethane is CₓH₂ₓ₊₂, the condensed formula is C₂H₆. The structural formula or the line-bond structure is shown in the attached picture.
Answer:
mole fraction of acetylene in the original mixture = 0.29
Explanation:
The application of Dalton's law of partial pressure comes into play.
From Partial pressure = Mole fraction x total pressure.
The step by step calculation is as shown in the attachment.