Chemistry Bonding Covalent Structures

Question

Write the following compounds' structural formula, electron dot formula, molecular shape, bond polarity (P or NP) and Molecular polarity (P or NP)

Compounds: H2O2, HCOOH, CO(NH2)2 , N2H4, C2H4, NH4+, C6H12

Answer 1

Not sure why you would post this in SAT MATH and COMPUTER SCIENCE. Also not sure if you are Chad J who asked this previously. At any rate, I'm bored right now, so I'll answer some.

H₂O₂ (14 valence electrons)

H - O - O - H and put 2 lone pairs on both O atoms.

Molecular shape = bent

Bond polarity = P

Molecular polarity = P

HCOOH (18 valence electrons)

Place C in the center and attach 1 single bond H, 1 double bond O and 1 single bond O. To the single bonded O, attach a single bonded H. On both O atoms, place 2 lone pairs of electrons.

Molecular shape = trigonal planar

Bond polarity = P

Molecular polarity = P

NH₄⁺ (8 valence electrons)

Place N in the center and attach 4 H atoms. Place in brackets, and put a + sign outside the brackets, something like this [...]⁺

Molecular shape = tetrahedral

Bond polarity = P

Molecular polarity = NP (although polar and non polar should not relate to ions as they are part of an ionic compound so NH4Cl is polar but NH₄⁺ is NP)