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Which of the following statements is not true? • a. covalent compounds have low melting and boiling points. • ob. covalent bonds between atoms of a compound are relatively weak compared to bonds between molecules. • c. covalent bonds occur between nonmetals. • d. covalent compounds are often gases or liquids.

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Why do cells appear different in distilled water than they do in 10% salt water?