Which term best describes the molecular geometry of ethylene, c₂h₄?
(a) linear
(b) planar
(c) pyramidal
(d) octahedral
(e) trigonal

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

In pqr m< p=60 m< q= 30 and m

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table