A reaction that produces bubbles is releasing a _____.
What is gas?
100
A pure substance made of only one kind of atom.
What is an element?
100
The substance being dissolved.
What is the solute?
100
The center of an atom.
What is the nucleus?
100
The name of materials made from petroleum.
What is petrochemicals?
200
When two liquids are mixed together and a solid forms, what do we call the solid?
What is a precipitate?
200
The type of matter made up of two or more kinds of atoms.
What is a compound?
200
The substance doing the dissolving.
What is the Solvent?
200
The place where electrons "float".
What is shells?
200
Single parts of a polymer chain.
What are monomers?
300
When cupric chloride is mixed with hydrochloric acid, an aqua colored product is formed. This is an example of _____________ which is one indicator that a chemical reaction has taken place.
What is a color change?
300
A substance made up of two or more atoms, not neccesarily different kinds.
What is a molecule?
300
The universal solvent.
What is water?
300
The positive charges in an atom.
What are protons?
300
Polymers can bend without breaking because they are made of...
What is chains of monomers?
400
When heat is produced in a chemical reaction we say that it is a ______________type of reaction.
What is exothermic?
400
The number of protons in Uranium.
What is 92?
400
The solution made from NaCl and H2O.
What is salt water?
400
Negative charges in an atom.
What are electrons?
400
The non-scientific name for sodium tetraborate.
What is borax?
500
When a chemical reaction takes place and heat is absorbed we call this a ________________reaction.
What is endothermic?
500
The name of the chart we find the elements on.
What is the Periodic Table?
500
Kool-aid is a type of ______________mixture.
What is homogeneous?
500
Particles that do not carry a charge.
What are nuetrons?
500
Polymers are a chemical reaction for several reasons. Name one.
What is forms a precipitate? Cannot be reversed or forms a new and different type of substance.