1.Add 43.8 lbs and 56.8923 lbs. write the correct significant figures. 2. Convert the from 1 answer to kg. Use correct significant figures 3. Convert the answer from 2 to g. Use correct significant figures 4. Write the answer from 3 in scientific notation using correct significant numbers

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A: a)  (3.20 × 107) × (1.720 × 105)       ( 3.20 × 1.720) ×10(7+5)            5.504 × 1012

Q: #4

A: A question based on tools in analytical chemistry that is to be accomplished.

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Q: Selected Answer: Answers: 1233.7 g. 1233.68 g. 1233.676 g. 1.23 x 103 g. 1233.7 g. 1234 g.

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Q: 2. Calculate the mass of an iron block with a volume of 50.00 cm³. The density of iron = 7.86 g/cm³.…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.