STAAR Cat 1 Flashcardizz 3

Front

What does CaCO₃ represent in chemistry?

Back

Formula

Front

In the chemical equation 2Mg + O₂ → 2MgO, how many oxygen atoms are in the product?

Back

2

Front

What is a chemical change?

Back

A change in which new substances are formed.

Front

Where are nonmetals located on the Periodic Table?

Back

Location 3

Front

What do bubbles forming when vinegar and baking soda are combined indicate?

Back

They show that a gas is forming.

Front

What is the definition of a chemical formula?

Back

A representation of a substance using symbols for its constituent elements.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in new substances, while a physical change does not.

Front

What is the significance of subscripts in a chemical formula?

Back

They indicate the number of atoms of each element in a molecule.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is the role of a catalyst in a chemical reaction?

Back

It speeds up the reaction without being consumed.