reactions Flashcards

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1
Q

what is a catalyst

A

Speed up the rate of the reaction by lowering the amount of energy needed to get it started (activation energy)

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2
Q

what does increasing the concentration do to a reaction

A

Increasing the concentration of one of the reactants will increase the speed of the reaction

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3
Q

what does decreasing the temperature do to a reaction

A

Lowering the temperature slows down the reaction

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4
Q

what are ways to change the rate of a reaction

A

temperature, surface area, catalysts, inhibitors, and concentration

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5
Q

what does increasing the surface area do to the rate of a reaction

A

Increasing the surface speeds up the reaction

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6
Q

what do inhibitors do

A

slow down the rate of the reaction

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7
Q

what is on the left side of a chemical equation

A

the reactants

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8
Q

can you add/change a subscript

A

no

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9
Q

what is the right side of a chemical equation

A

the products

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10
Q

what can you change in a chemical equation to balance it out

A

the coefficients

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11
Q

what is a decomposition reaction

A

One element breaks up into two or more parts

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12
Q

what happens when you decrease the surface area

A

the reaction slows down

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13
Q

what happens when you increase the temperature

A

the reaction speeds up

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14
Q

what is a synthesis reaction

A

Two elements or compounds come together to form one compound

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15
Q

what happens when you decrease the concentration

A

the reaction slows down

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16
Q

does decreasing something in a chemical reaction slow down or speed it up

A

slow it down

17
Q

what is a replacement reaction

A

​Elements on the reactants side recombine on the product side.

18
Q

how do you find the number of atoms on one side of the reaction

A

you use the subscript and if there is a coefficient you multiply the coefficient by the subscript.

19
Q

how do you say the arrow in a chemical equation

A

the reactants yield the products

20
Q

the law of conservation of mass is

A

the mass of the reactants is equal to the the mass of the products