The unit for force is kg m/s.
True Or false?

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.

Which feature do highland climates have that lower elevation areas do not?

Classify this reaction: 2al+n2-> aln.