<span> A horizon is a surface horizon that largely consists of minerals which holds sand, silt, and clay)and with appreciable amounts of organic matter. This horizon ison top layer of many soils in grasslands and
agricultural lands.</span>
Answer:b
Explanation:
I just answered it on apex
Answer:
chemical change bcoz it cannot be in the past form
magnesium oxide is: MgO (right side)
so the left side is: Mg + O2
for the equation to be balanced there must be two oxygens on both sides
Mg + O2 = 2MgO
but now the magnesium is uneven, so there must be two magnesiums on each side
the answer is: B) 2Mg + O2 = 2MgO
C) Lower,
They're lower because molecular solids form IMF's such as Dipole-Dipole and H-Bonds, while Ionic bonds are much more powerful.