Combustion

What is Combustion?

• reaction between substance (fuel, wood, paper clothes etc) and oxygen that releases Carbon dioxide and Water, with lots of energy.

• reaction between substance (fuel, wood, paper clothes etc) and carbon dioxide that releases oxygen and Water, with lots of energy.

• reaction between substance (fuel, wood, paper clothes etc) and water that releases Carbon dioxide and oxygen with lots of energy.

• Carbon dioxide is what we breathe out

Tags

NGSS.MS-PS1-5

What is an Exothermic reaction?

• reaction that releases FIRE!

• reaction that absorbs energy to its system

• reaction that releases energy to its surroundings

• reaction that releases explosive flame to the surroundings.

Tags

NGSS.MS-PS1-4

What are hydrocarbons?

• molecules that only contain carbon

• molecules that only contain hydrogen

• molecules that only contain carbon and hydrogen and oxygen

• molecules that only contain carbon and hydrogen

Energy is best described as the ability to-

• do work.

• start a chemical reaction.

• move an object

• transfer heat.

Tags

NGSS.MS-PS3-5

Potential energy can be impacted by-

• the types of ponds in a compound.

• the location of an object in relation to its equilibrium point.

• the interaction of nuclear particles.

• all of the above.

Tags

NGSS.MS-PS3-2

A reaction takes place in a closed system in which the temperature drops and condensation forms on the outside of the system. This reaction can be described as–

• A combustion reaction producing water

• a reaction that absorbs energy from the surroundings

• a reaction that releases energy to the surroundings

• a spontaneous reaction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

______ energy is the work done by a force acting through a distance and involves motion.

• Potential

• microscopic

• random

• kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The amount of disorder is described as

• Entropy

• enthalpy

• combustion

• oxygen

Which picture is NOT an example of Chemical PE?

• 
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• 
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Tags

NGSS.MS-PS1-2

Which is NOT true about the law of conservation of energy?

• Energy can not be destroyed

• Energy can only be rearranged

• Energy can be created

• energy in = energy out

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5