How many nearest neighbors does each silicon atom have in solid si?

What are the major types of a chemical compound

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity