Be sure to answer all parts. Carry out these operations as if they were calculations of experimental results, and express each answer in the correct units and with the correct number of significant figures: (a) 7.8165 m + 0.6 m + 2.85 m= 11.3 (b) 3.91 g - 2.48S7 g =|1.42 (c) 4.93 cm X 3.5199 cm=|17.4 (2 x 10° g+ 7.657 g) (d) (0.073 cm - 0.011 cm') I g/cm Hin Soluti Guided So

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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.