Natural selection requires variation between individuals. Mutations and reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring.
Answer:
ridgid, fixed shape, and fixed volume
Explanation:
solid are all the thing listed as the answer because, you should know solids are not bendable. Therefore they must be very hard.
Answer:
1. H+ + OH- <--------> H2O
H+ is a Lewis acid
OH- is a Lewis base
2. Cl- + BCl3 <---------> BCl4-
Cl- is a Lewis base
BCl3 is a Lewis acid
3. K+ + 6H2O <------> K(H2O)6+
K+ is a Lewis acid
H2O is a Lewis base
Explanation:
By definition, Lewis acid is an electron pair acceptor while a Lewis base is an electron pair donor.
Potassium ion accept electron pairs from 6 water molecules which donate the electron pairs.
Names of Ionic Compounds<span>. </span>Name<span>. </span>CHEMISTRY<span>: A Study of Matter. © 2004, GPB. 6.16a. KEY. </span>Write<span> the </span>name<span> of </span>each ionic compound below. 1. MgS<span>. </span>2. FeO ... magnesium sulfide iron (II<span>) </span>oxide<span>barium sulfite </span>aluminum<span> hydroxide.</span>