Exploring Chemical Reactions and Compounds

This picture represents which of the following?

• element

• compound

This picture represents which of the following?

• element

• compound

¿ Qué cambio se esta produciendo en la imagen?

• Cambio físico.

• Cambio químico .

What type of reaction involves the breaking down of a substance into simpler substances?

• Single Displacement Reaction

• Double Displacement Reaction

• Synthesis Reaction

• Decomposition Reaction

A copper penny turning greenish after a few years is an example of ...

• Chemical Change

• Physical Change

In this chemical equation, the elements in red are the_______.

• Products

• Reactants

• Subscripts

• Coefficients

What is the molecular structure of table salt?

• Sandwich

• Molecular who?

• H2O

• NaCl

How many atoms of Hydrogen are in this compound?

• 1

• 2

• 3

• 4

What is a chemical reaction?

• A process where elements are destroyed

• A process where substances are transformed into new substances

• A process where compounds are broken into elements

• A process where elements are created from compounds

Which of the following is an example of a compound?

• Oxygen

• Water

• Hydrogen

• Nitrogen