Answer:
This is True
Explanation:
A fossil is any remains or trace of an ancient organism. Fossils include body fossils, left behind when the soft parts have decayed away, as well as trace fossils
The electronegativity of the element affects the ability of its compounds to dissolve in different solvents.
<h3>What is the meaning of electronegativity?</h3>
Electronegativity is a measure of an atom's ability to attract shared electrons to itself.
Polar bonds have a positive and negative side to them, and therefore can attract water dipoles and dissolve in water.
If the polarities of the solvent and solute match (both are polar or both are nonpolar), then the solute will probably dissolve.
If the polarities of the solvent and solute are different (one is polar, one is nonpolar), the solute probably won't dissolve.
Hence, option D is correct.
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Answer:
Mass of sodium, the person daily consume = 8.58 g
Explanation:
Given that:-
sodium chloride is 39% sodium by mass which means that:-
100 g of sodium chloride contains 39 g of sodium
Also,
1 g of sodium chloride contains 0.39 g of sodium
So, Given mass = 22 g
22 g of sodium chloride contains
g of sodium
<u>Mass of sodium, the person daily consume = 8.58 g</u>
The acid is Nitric acid and the base is Zinc hydroxide.