Answer:
a) Pb(NO3)2 + 2KI ⇒ PbI2 + 2K(NO3)
ion that form the precipitate = Pb2+ and I-
Spectator ions = NO3. and K+
b) Pb 2+ + 2 I- ⇒ PbI2
Explanation:
The rows are called Periods.
Answer:
Places near the Equator experience little seasonal variation. They have about the same amount of daylight and darkness throughout the year. These places remain warm year-round. Near the Equator, regions typically have alternating rainy and dry seasons.
Explanation:
The number of protons in an atom is equal to the atomic number.