Elements, Compounds, and Mixtures Explained

What causes the neon sign to emit light?

• Chemical reaction inside the tubes

• Heat generated by the tubes

• Electrical currents flowing through neon gases

• Reflection of external light

Which element is found in a silver dollar?

• Aluminum

• Gold

• Copper

• Silver

What is the main component of a golden wedding band?

• Gold

• Copper

• Aluminum

• Silver

What elements make up sugar cubes?

• Hydrogen and Oxygen

• Calcium, Oxygen, and Chlorine

• Sodium, Hydrogen, and Oxygen

• Carbon, Hydrogen, and Oxygen

Tags

NGSS.MS-PS1-1

How many oxygen particles are in baking soda?

• Two

• Four

• One

• Three

Tags

NGSS.MS-PS1-1

What is the chemical formula for water?

• CO2

• C6H12O6

• H2O

• NaCl

Tags

NGSS.MS-PS1-1

Which compound is made up of one sodium particle and one chlorine particle?

• Baking soda

• Table salt

• Bleach

• Sugar

Tags

NGSS.MS-PS1-1

What elements are found in bleach?

• Sodium and Chlorine

• Calcium, Oxygen, and Chlorine

• Carbon, Hydrogen, and Oxygen

• Hydrogen and Oxygen

Tags

NGSS.MS-PS1-1

What is a mixture?

• A combination of two or more substances that are not chemically bonded

• A substance made of two elements

• A substance made of three elements

• A substance made of one type of particle

Which of the following is an example of a mixture?

• Sugar

• Water

• Table salt

• An egg