Answer:
as the world is changing we change also
Explanation:
We must always check and recheck are a hypothesis
Answer:
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Innate immune system
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Acquired immune system
Explanation:
The innate immune system is a defense system with which we are all born and which protects us at all times against all antigens, prevents harmful external bodies from entering our body.
The acquired immune system is the second line of defense and develops by exposing itself to various antigens, building a defense against it when the innate system cannot fight the invader.
Equation: MgOH2 (s) --> MgO (s) + H2O (g)
And it's already balanced.
I had chemistry this semester too.
Answer:
Polar Covalent
Explanation:
Chlorine and Fluorine are both halogens. They are in group VII.
The Pauling's electronegativity value of these elements are:
F = 4.0
Cl = 3.0
Electronegativity of an element is a property that combines the ability of its atom to lose and gain electrons. It can be used to predict bond type.
For heteronuclear molecules where the electronegativity difference is between 0.5 and 1.7 there will not be an equal sharing of the electron pair between the atoms involved.
The bond that results is a Polar Covalent bond.
When the electronegativity difference is zero or less than 0.5, a non-polar covalent bond forms. There would be an equal sharing of the electron pair donated.
