energy changes

In an endothermic reaction the products have 

• more energy than the reactants
• less energy than the reactants
• the same energy as the reactants
• no energy

Tags

NGSS.HS-PS1-4

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same
• Increase
• Decrease

Tags

NGSS.HS-PS1-4

Is the combustion of gasoline endothermic or exothermic?

• Endothermic
• Exothermic

Tags

NGSS.HS-PS1-4

If the energy required to break the bonds is greater than the energy given out by making new bonds the reaction is

• Exothermic

• Endothermic

• Neutralisation

Tags

NGSS.HS-PS1-4

If the energy required to break the bonds is less than the energy given out by making new bonds the reaction is

• Exothermic

• Endothermic

• Neutralisation

Tags

NGSS.HS-PS1-4

What type of reaction is shown in the photo?

• Exothermic
• Isothermic
• Endothermic
• None of the  above

Tags

NGSS.HS-PS1-4

Fuels need what to burn?

• Carbon dioxide
• Sulphur dioxide
• Oxygen
• water

Coal, oil and gas are examples of

• Shell Fuels
• Bone fuels
• Fossil fuels
• Sea fulels

Another term for burning is

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion

Alternative energy sources

• fuels made from organic matter
• heat energy naturally produced within Earth
• sources of energy that do not come from fossil fuels
• materials in the environment that are useful to people