The beginning is the rest of options for last question?

Question

3) Positive hydrogen atoms react with nearby negative hydrogen atoms

Which of the following is the correct formula for the element when in its natural state?
1) H
2) H2
3) Mg2

Water is a polar molecule because:
1) the one Oxygen has more pull on the electrons than the Hydrogens.
2) the single Oxgen atom is larger than the two Hydrogen atoms combined.
3) the one Oxygen has less pull on the electrons than the Hydrogens

Multiple bonds form because each atom in a molecule needs more than one electron to form an octet.
1) True
2) False

Which of the following is the correct formula for the element when in its natural state?
1) Na2
2) Na
3) Br

Answer 1

2) H2
1) The one oxygen has more pull on the electrons...
1) True
2) Na

Answer 2

Here are some tips.
1) The natural state of compounds is as a single element (E), except for gases which are as double element (E2).
2) Polarity would arise from a charge distribution in a molecule. Electronegativity is a measure of the pull of electrons by an atom. In the water molecule there is additional factors to consider (lone pair of electrons) to consider as well.
3) A single bond is formed by an element sharing one electron to try and achieve the octet rule. If the octet is not met then more electrons would need to be shared.

Answer 3

2) H2
1) the one oxygen has more pull on the electrons than the hydrogens.
1) true
2) Na

Answer 4

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Answer 5

H2, 1, True, Na