Write the mass of Mars, which is approximately 642,000,000,000,000,000,000,000 kg, in scientific notation.
A) $6.42 \times 10 ^ { 20 }$
B) $6.42 \times 10 ^ { 24 }$
C) $6.42 \times 10 ^ { 22 }$
D) $6.42 \times 10 ^ { 23 }$
E) $6.42 \times 10 ^ { 21 }$

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The Answer of Write the mass of Mars, which is approximately 642,000,000,000,000,000,000,000 kg, in scientific notation.
A) $6.42 \times 10 ^ { 20 }$
B) $6.42 \times 10 ^ { 24 }$
C) $6.42 \times 10 ^ { 22 }$
D) $6.42 \times 10 ^ { 23 }$
E) $6.42 \times 10 ^ { 21 }$

Write the Mass of Mars, Which Is Approximately 642,000,000,000,000,000,000,000 Kg 6.42×10206.42 \times 10 ^ { 20 }6.42×1020

Write the Mass of Mars, Which Is Approximately 642,000,000,000,000,000,000,000 Kg $6.42 \times 10 ^ { 20 }$