Combustion

What is essential for a combustion reaction to begin?

• carbon dioxide

• fuel

• fuel, oxygen, and heat

• water and oxygen

Combustion is when a __________ reacts with oxygen

• petrol

• fuel

• fire triangle

• carbon dioxide

Tags

NGSS.MS-PS1-2

What two items are included in the products of a combustion reaction?

• heat and light

• water and silver

• neon and lithium

• heat and cold

What is NOT product of complete combustion?

• carbon dioxide

• water

• carbon monoxide

Give the name of this compound...C₃H₈

• propene

• butane

• butene

• propane

Tags

NGSS.MS-PS1-1

How are fossil fuels formed?

• Dead organisms fall to the bottom of the floor and are covered in sediment. Heat and pressure turn it into fossil fuels

• Dead organisms are buried.

• Fossil fuels are renewable so they are man made

• Dead organisms fall to the bottom of the floor and pressure and cementation change it into fossil fuels

Tags

NGSS.MS-ESS2-1

When water is poured over burning wood, the fire goes off. This is because...

• The temperature of water goes up

• The temperature of wood decrease

• Molecules of water reacts with oxygen present in the flame.

• The flame vaporizes.

Tags

NGSS.MS-PS1-4

What is the main cause of air pollution?

• Plowing fields and releasing dust

• Using solar power

• Burning fossil fuels

• Using water power

Climate change caused by extra carbon dioxide in the air that causes heat to get trapped in the atmosphere is called

• global warming

• photosynthesis

• smog

Tags

NGSS.MS-ESS3-5

The main gas for breathe is ....

• Nitrogen

• Oxygen

• Argon

• Hydrogen