If a 25.0 L sample of gas at C is heated, what is the new sample of the gas at constant pressure?

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.

All of the following are part of the biosphere except

How are isotopes of the same chemical element alike? how are they different?