Cell Membrane
The cell membrane also protects and supports the cell. Found in plant cells but not animal cells. This is the outer most layer in the plant cell. It is stiff, rigid and non living, and mad of cellulose.
Answer:
ATOMIC number of element A is 3
Explanation:
Atomic number is the same as number of protons of an element.
according to the periodic table, Lithium is the element with 3 protons in its neutral state and it's atomic number is 3.
Answer:
The correct answer is -2952 KJ/mol
Explanation:
Attached is the diagram for Born- Haber cycle. According to the cycle:
ΔHf= ΔH1 + ΔH2 + ΔH3 + ΔH4 + ΔH5 + LE
In order to calculate the lattice energy (LE):
LE= ΔHf - ΔH1 - ΔH2 - ΔH3 - ΔH4 - ΔH5
LE= -1123 KJ/mol - 148 KJ/mol - 159 KJ/mol - 728 KJ/mol - 1450 KJ/mol - (2 x (-328 KJ/mol)
LE= -2952 KJ/mol
Metamorphism would compare to a mineral that formed through evaporation
Is it always possible to identify something as an element<span>, </span>compound<span>, </span>pure substance or mixture<span> just by looking at it? </span>