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is the use of reliable knowledge for a practical purpose.
is the study of the natural world through observation and experimentation.
What is the use of reliable knowledge for a practical purpose

What is the subscript for oxygen in its molecular formula

Which three statements represent the benefits of performing experiments using computer simulations?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.