Which statement about the Law of Conservation of Mass is NOT true? A. Although the molecular makeup of molecules may change, the atoms are not lost. B. Matter is neither created nor destroyed during a chemical change. C. Chemical reactions create new atoms, which will increase the mass of the substance.

C. Chemical reactions create new atoms, which will increase the mass of the substance.

Explanation:

It is not true that according to the Law of conservation of mass that mass of the substance will increase during chemical reactions.

During a chemical reaction, new atoms are not being created. The atoms of the reactant simply recombines to given a different product or compound. The atoms are still the same only the compound or product form differs.

According to the law of conservation of mass "in a chemical change, matter is neither created nor destroyed but bonds are broken and atoms combine".

By virtue of this, chemical reactions conserves mass so that the mass we start with is the same we end with since no new matter is destroyed nor created.

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d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day