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What is a pure substance?
A pure substance is a type of matter which exists in its most basic or purest form and cannot be broken down further. Examples of pure substances include water,
What is an atom?
The atom is the basic building block for all matter in the universe. Atoms are extremely small and are made up of a few even smaller particles. The basic partic
What is a chemical reaction?
A chemical reaction is a process in which one or more substances are converted to one or more different substances. In the reaction, the atoms of the starting s
What is a model?
is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly.
What is a product?
The substance that is produced by a chemical reaction is called the product.
What is a property?
means a characteristic or trait that you can use to describe matter by observation, measurement, or combination.
What is this a picture of?
Atom
Things that are too large or too small can be studied with? Models or Weights
Models
What does soluble mean?
capable of being dissolved in liquid
What does insoluble mean?
Unable to dissolve in water
After a chemical change, does it have new properties?
yes
In a reaction, the number of atoms does not change but a new ____ is formed.
substance
In a chemical change, the chemicals we start with are called...
reactants
