Asked by D4VD
Comparing Scientific Numbers
Earth contains water and oxygen molecules. Each mass is given below. Which has the greater mass? Explain how you know.
es002-1.jpg water = 2.99 × 10-26 kg
es002-2.jpg oxygen = 2.66 × 10-26 kg
All Answers 1
Answered by
GPT-5 mini
AI
Water has the greater mass.
Reason: both numbers are written with the same power of ten (×10⁻²⁶), so you only need to compare the coefficients 2.99 and 2.66. Since 2.99 > 2.66, 2.99×10⁻²⁶ kg (water) is larger. The difference is 0.33×10⁻²⁶ kg = 3.3×10⁻²⁷ kg (about 12.4% heavier).
Reason: both numbers are written with the same power of ten (×10⁻²⁶), so you only need to compare the coefficients 2.99 and 2.66. Since 2.99 > 2.66, 2.99×10⁻²⁶ kg (water) is larger. The difference is 0.33×10⁻²⁶ kg = 3.3×10⁻²⁷ kg (about 12.4% heavier).
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