Vocab Basics
These are the tiny pieces that makes up all matter.
What are ATOMS?
What is something made of all the same types of atoms or repeating group of atoms?
What is a SUBSTANCE?
The substances formed during a chemical reaction are called _____.
What are PRODUCTS?
Color and smell are examples of _____.
What are PROPERTIES?
Why do chemists use models to study atoms?
What is THEY ARE TOO SMALL TO SEE WITH THE HUMAN EYE?
What is TO MAKE THEM EASIER TO SEE/UNDERSTAND?
This word describes something you can observe about a substance.
What is a PROPERTY?
If two samples have different repeating groups of atoms, their properties will likely be ______.
What is different?
What happens to atoms during a chemical reaction?
What is they REARRANGE?
If a substance's melting point changed after mixing substances, what process occurred?
What is A CHEMICAL REACTION?
If two substances are gases at room temperature, does that tell us that all their properties will be the same?
What is NO?
Reactants are...
What are THE STARTING SUBSTANCES IN A CHEMICAL REACTION?
If two substances have the same repeating group of atoms, their properties will probably be _____.
What is THE SAME?
What is SIMILAR?
Are atoms created or destroyed in a chemical reaction?
What is NO; NEITHER ONE?
If two substances start as liquids and end as solids, what likely happened to the atoms?
What is THEY REARRANGED?
If two substances have different numbers of atoms in their repeating groups, what can you predict about their properties?
What is THEIR PROPERTIES WILL BE DIFFERENT?
A chemical reaction is...
What is THE PROCESS WHEN ATOMS FORM NEW SUBSTANCES BY REARRANGING?
What is THE TEMPERATURE AT WHICH A SOLID BECOMES A LIQUID?
If nothing escapes from a sealed container, what must be true about the number of atoms before and after the reaction?
What is THE NUMBER OF ATOMS STAYS THE SAME?
If two substances are in the same phase, what can you look at to see if they are really the same substance?
What is LOOK AT THEIR OTHER PROPERTIES (BOILING POINT, MELTING POINT, SMELL)
In a sealed container, two substances are mixed and two new solids form. What did the atoms rearrange into?
What is THEY REARRANGED INTO NEW REPEATING GROUPS?
This is an object, diagram, or computer program used to help us understand something by making it simpler/ easier to see.
What is a MODEL?
On the atomic level, why do substances have different properties?
What is THEIR ATOMS ARE ARRANGED IN DIFFERENT REPEATING GROUPS?
What happens to the atoms that cause a substance's properties to change after a chemical reaction?
What is THE ATOMS REARRANGE?
Why is a change in boiling point evidence of a new substance forming?
What is BOILING POINT IS A PROPERTY AND DIFFERENT SUBSTANCES HAVE DIFFERENT PROPERTIES?
On the atomic level, explain why a brown solid melting at 1,300°C and a liquid melting at 20°C could form a substance that melts at 250°C.
What is THE ATOMS REARRANGED TO FORM A NEW SUBSTANCE WITH DIFFERENT PROPERTIES?