1) it allows air, water and nutrients (salts) to penetrate the soil and reach the plant roots and not just stay on the surface of the soil where the plant can't absorb it.
The mass ca(Oh)2 needed to produce 1.5 l of 0.25 solution is calculated as follows
find moles
=moles = molarity x volume
moles is therefore = 1.5 x 0.25 = 0.375 moles
mass = moles x molar mass
0.375mol x 74.09 g/mol = 27.78 grams
I believe the correct answer from the choices listed above is option B. The stair-step line between the pink squares and the yellow squares separates the metals <span>from the nonmetals. Hope this answers the question. Have a nice day.</span>
Answer:
Cell is defined as the smallest unit or basic unit of life.
B chemical properties is a right answer
