Chemistry

Is burning sugar a...

• Chemical Reaction

• Physical Reaction

splitting of an atomic nucleus into two smaller fragments, accompanied by the release of large amounts of energy

• Nuclear fission

• Nuclear fusion

It’s the basic building blocks of matter

• Proton

• Atom

• Element

Which of the following is a compound?

• Si

• CO₂

• Cl

• He

• Ti

Which of the following represents an element?

• H₂O

• HCl

• NaCl

• Au

• CaCO₃

This picture represents which of the following?

• element

• compound

This picture represents which of the following?

• element

• compound

Water is made up of hydrogen and oxygen, two elements that were chemically combined. This makes water a(n)

• atom

• compound

• element

• mixture

An element is a ___ that cannot be separated into simpler substances by physical or chemical means.

• pure substance

• mixture

• solution

• compound

What is the chemical symbol for Chlorine?

• Cl
• Ch
• Cr
• Ce