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M=40g V=31cm^3 what is the density

Indicate the SI base units or derived units that are appropriate for the following measurements: (a) The length of a marathon race (26 miles 385 yards) (b) The mass of an automobile (c) The volume of a swimming pool (d) The speed of an airplane (e)

What is the scientific word: molecules of an element containing three of the same type

What are some examples of Charles' law?

Which of the following is an example of biotechnology? a.) a petroleum based lubricant used in farming machinery b.) a driverless, solar powered automobile c.) a robotic probe on Mars that can detect water d.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda