Why is the cell membrane said to be selectively permeable

Brainliest ! is slowing down a car an example of acceleration? explain. - explain correctly

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2