Front

Will all of the properties of these two samples likely be the same or different?

Back

The properties will likely be different because the repeating groups of atoms that make up each sample are different.

Front

One product of a reaction is shown to the left. Which of the diagrams below shows the repeating groups of atoms that make up the samples the scientist must have mixed together?

Back

Front

After mixing the two reactants together, a scientist found two substances that melt at higher temperatures in the sealed container. (Nothing had escaped.) Which of the diagrams below shows the repeating groups of atoms that make up the products?

Back

Front

Would the two samples pictured have properties that are all exactly the same or different? Why?

Back

The properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.

Front

Which reactants must make up the samples the scientist mixed together to get the molecule to the left as one of their products?

Back

Front

Which of the diagrams below shows the repeating groups of atoms that would form as products when the two reactants are mixed together?

Back

Front

Something that can be observed about a substance, such as color, smell, or boiling point is known as a ___________.

Back

property

Front

Something that is made up of all the same atoms or groups of atoms is called a _________.

Back

substance

Front

The tiny pieces that all matter- all stuff in the world- is made of are known as _______.

Back

atoms

Front

An object, diagram, or computer program that helps us understand something by making it simpler or easier to see is called a ________.

Back

model