A sample of 5 lactobacillus bacteria found in yogurt measure 7.9 x 10-6 m in total length. A second sample of 3 bacteria measure 5.2 x 10-7 m in total length. What is the average length of a lactobacillus bacteria? Keep the answer in scientific notation. Round the mantissa to the nearest hundredth.

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Q: mass percent

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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.