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10 Cards in this Set

  • Front
  • Back
chemical reaction
A chemical reaction is the process in which two or more substances combine to make one or more new substances that have different properties than the original ones.
atom
An atom is the smallest part of an element.
molecule
A molecule is a particle made of two or more atoms that are held together with bonds.
precipitant
A precipitate is the solid substance that forms and separates from a mixture.
reactant
A reactant is the starting substance in a chemical reaction.
product
A product is the substance(s) produced in a chemical reaction.
compound
A compound is a substance made of two or more different kinds of atoms.
When there is a chemical reaction in substances, what happens to the atoms?
When there is a chemical reaction, the atoms come together to form different molecules and substances.
When you mixed calcium chloride, baking soda and water, how did you know a chemical reaction occurred? What is the evidence that showed that?
I know a chemical reaction occurred because I saw that a new substance was created and the evidence is that the substance changed color and became colder.
If salt breaks down into smaller pieces, what is the smallest piece salt can be and still be salt?
The smallest form is a single molecule of salt that is a compound.