The chemical element that is most abundant in the human body is

A molecule of water H2O is made from____________ combining two hydrogen atoms and one oxygen atom

You put 1 spoonful of salt into 1 Liter of water and stir. The resulting liquid is an example of a(n)

A material that can be represented by a chemical formula is

The chemical formula for water (H2O) means that each water molecule contains

Lead has a density of 11.3 g/cm3 and a mass of 282.g. What is its volume

Which of the following is not a potential sign of chemical change

The smallest unit of an element that maintains the properties of that element is a

Solids liquids, and gases are three forms of matter that

How many atoms are in a single molecule of FE2O3

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