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q cards > chapter 5 science quiz > Flashcards

chapter 5 science quiz Flashcards

1
Q

what is the particle theory of matter

A

a way to describe the structure of matter and its behaviour

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2
Q

what is chemistry

A

the study of matter and its interactions

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3
Q

what is a heterogeneous mixture

A

made up of two or more particles where the different particles are easy to see and seperate. ex. sand

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4
Q

what is oxidation. example?

A

ability of a substance to react to oxygen. ex. rusting of iron

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5
Q

what is flammability/combustibility

A

ability of a substance to react with oxygen and burn into flames

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6
Q

what is a chemical property

A

a property of a substance that describes its ability to change into a substance. ex. a match will burn

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7
Q

what is a compund. examples?

A

a pure substance made up of two or more different elements. can be broken down into simpler substances. ex. water, sugar, table

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8
Q

what is a physical property

A

a charateristic of a substance that can be observed or measured.

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9
Q

what is an element. examples?

A

a pure substance made up of identical atoms. cannot be broken down into simpler substances. ex. iron, copper, carbon

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10
Q

what is matter

A

matter is any substance that has mass and volume (takes up space)

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11
Q

what is the classification of matter

A

all matter is made up of different types or combinations of particles.

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12
Q

what is mass

A

a measure of the quantity of matter in an object. measured in kg or g

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13
Q

what is reactivity

A

ability of a substance to react quickly with other substances

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14
Q

what is a mixture

A

a combination of 2 or more pure subtances

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15
Q

what are the 2 types of physical properties?

A

qualitative: using your 5 senses
quantitative: measured

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16
Q

what are the states of matter

A

solid, liquid, gas

17
Q

what is a property

A

a characteristic that describes a substance

18
Q

what are the evidence of a chemical change

A
  1. change in color
  2. change in odor
  3. production of gas
  4. change of temperature/light
  5. formation of a precipitate
19
Q

what is volume

A

a measure of how much space an object takes up. measured in L or mL

20
Q

what is a homogeneous mixture

A

occurs when 2 or more particles blend together and cannot be separated. ex. jello, apple juice, tea.

21
Q

what is a physical change

A

a change in which the composition of the substance does not change. ex. when ice cubes melt into water

22
Q

what is a pure substance

A

a substance that is made up of only one type of particle

23
Q

what is a chemical change

A

is a change in the starting of the substance and creates new substances. ex. baking a cake

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