The radius of an iron atom has been calculated to be about 0.14 m. what is this length in scientific notation?

Based on the equation and the information in the table, what is the enthalpy of the reaction?

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

Which type of fossil does this image depict?