Which of the above pictures (A-H) represents atom of an element? 2, Which of the above pictures represents molecules of an element? 3, Which picture displays a mixture of atoms? 4. picture displays a mixture of atoms and compounds? 5. Which picture displays molecules of a compound? 6. EXTENSION: which picture shows atoms of an element which is a solid?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

How many molecules are in 6.0 moles of methane

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.