An example of a double displacement reaction is a.
AB -> A + B
c.
A + B -> AB
b.
AX + B -> A + BX
d.
AX + BY -> AY + BX

Please select the best answer from the choices provided

A
B
C
D

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.

Could someone me with number one you

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false