Answer:
Backbone
Explanation:
Organisms that have backbones are known as vertebrates, while the ones without a backbone are classified as invertebrates.
By taking hydrogen ions, certain bases directly lower the H+ than OH- concentration. Other bases break down to create hydroxide ions, which indirectly lowers the H+ concentration.
<h3>
What is the difference between acid and base?</h3>
H+ ion concentration is raised by an acid. A base is a chemical that, in an aqueous solution, produces hydroxide (OH-) ions, gives electrons, and receives protons. A donor of protons is an acid. A proton can enter a base. When dissolved in water, an acidic chemical compound produces a solution that has more H+ ion activity than clean water. A base is an aqueous material that releases hydroxide (OH-) ions, receives protons, or contributes electrons. A donor of protons is an acid. A base is a proton acceptor.
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Answer:
The heat required to melt 7.35 g of benzene at its normal melting point is 934.8 Joules.
The heat required to vaporize 7.35 g of benzene at its normal melting point is 2,893 Joules.
Explanation:
Mass of benzene = 7.35 g
Moles of benzene = 
Heat fusion of benzene,
1) Heat required to melt 7.35 g of benzene at its normal melting point = Q


(1 kJ = 1000 J)
2) Heat vaporization of benzene,
Heat required to vaporize 7.35 g of benzene at its normal melting point = Q


(1 kJ = 1000 J)
Answer:
C
Explanation:
magnesium + chlorine arrow magnesium chloride.
Mg(s) + Cl2(g) = MgCl2(s)
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