chemical reactions Flashcards

1
Q

what is a reactant and product.

A

a reactant is what reactants a product is what is created at the end of a reaction.

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2
Q

what is a reaction.

A

when something is introduced to something else and it reacts.

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3
Q

what is a chemical reaction

A

Reactions occur when two or more molecules interact and the molecules change.

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4
Q

what is endothermic

A

it consumes heat

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5
Q

what is exothermic

A

it pushes heat out

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6
Q

are atoms destroyed and created in a reaction

A

nothing is destroyed or created

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7
Q

what are bonds

A

they are atoms in a compound chemically joined together

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8
Q

are the reactants to the left of the arrow

A

yes

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9
Q

if there are more than one reactant or product what separates them

A

a plus sign like this +

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10
Q

is combustion a different word for burning

A

yes

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11
Q

what are the 3 things needed to make a fire

A

oxygen,heat and fuel

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12
Q

can carbon dioxide produced can be detected using limewater

A

yes it can

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13
Q

what happens if there isn’t enough air or oxygen for complete combustion

A

incomplete combustion

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14
Q

does soot and smoke cause breathing problems

A

yes

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15
Q

Some compounds break down when heated what is this called

A

thermal decomposition

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