You need to answer this question because we don't do your
homework and it is asking for your opinion and to show your
critical thinking skills and how well you understood the the lesson.
The answer is: 4) " 2.7 * 10⁵ mg " .
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Explanation:
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Since all answer choices given are in "mg" ("milligrams"); we need to convert our given value, "0.27 kg" ("kilograms") to "mg" ("milligrams").
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Note the following "exact value" conversions:
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1000 mg = 1 g ;
1000 g = 1 kg.
(0.27 kg) (1000 g / 1 kg) (1000 mg/1 g) = __?__ mg ;
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The units of "kg", and "g" cancel to "1" and we are left with:
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0.27 * 1000 * 1000 mg = 270,000 mg = 2.7 * 10<span>⁵ </span> mg ; which is:
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→ Answer choice: # 4 .
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Answer:
The signs of chemical change include changes in color, temperature, the production of light, changes in odor, and the formation of gases.
Im confused here. Add the rest of the question for me to help you
Answer:
Henry Moseley.
Explanation:
Hello,
Henry Moseley's work stated that it is better to organize the periodic table in the light of the atomic number (which accounts for the amount of protons and electrons) instead of the atomic mass, because atomic numbers are not arbitrarily assigned as long as they have the aforesaid physical basis.
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