Nucleic acids are chains of 5-carbon sugars linked by bonds with an organic base protruding from each sugar.
a) amino
b) phosphodiester
c) carboxyl
d) phosphate

When the earth was formed and cooled, why did nickel and iron end up in the center of the earth while basalt and granite ended up in the outer layers

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate