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Science Exam > Chemistry > Flashcards

Chemistry Flashcards

1
Q

What is chemistry?

A

Chemistry is the study of matter

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2
Q

What is matter?

A

Matter is anything that has mass and takes up space

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3
Q

All evidence supports that matter is made up of…

A

particles (particle theory of matter)

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4
Q

give the 3 points of the particle theory of matter

A

These particles are always moving constantly

These particles are very tiny

These particles determine what kind of matter something is

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5
Q

What are the first two groups of Matter

A

(Pure) Substances and Mixtures

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6
Q

What are substances?

A

Substances are made up of one type of particle.

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7
Q

If those particles are atoms we have a…

A

element

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8
Q

If particles in our substance are molecules, we have a…

A

Compound

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9
Q

True or False

Compounds can be broken down chemically

A

True

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10
Q

What are the 2 types of compounds?

A

Ionic and Molecular

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11
Q

Give Examples of Molecular compounds

A

Sugar
Co2
Alcohol
Water

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12
Q

Give examples of Ionic compounds

A

Salt
Rust
Nitride

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13
Q

What are Mixtures made of ?

A

Mixtures are made up of two or more types of particles.

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14
Q

True or False

Mixtures are chemically bonded

A

False

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15
Q

What are Homogeneous mixtures / Solutions?

A

Homogeneous Mixtures are if the mixtures contains only true particles
Homogeneous= Same throughout

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16
Q

What are Alloys ?

A

Mixtures of metals that are solids in solids (metal in metal)

17
Q

All Other Solutions
(Sugar water, salt water)

A

All Other Solutions
(Sugar water, salt water)

18
Q

What are Heterogeneous Mixtures/ Mechanical Mixtures

A

If the mixture has things in it that are not true particles, then we have a heterogeneous mixture

19
Q

Give examples of Colloids

A

Milk
Paint
Glue

20
Q

Give examples of Suspensions

A

Orange Juice
Muddy Water
Snow Globe

21
Q

Give examples on the “other” heterogenous mixtures

A

Sand
Raisin Brand

22
Q

Give examples on Alloys

A

Steel
Brass
Bronze

23
Q

what is a molecule

A

A molecule consists of two or more atoms chemically bonded

24
Q

What is a colloid

A

This is when the bits are small but still larger then atoms or molecule. The bits in a colloid will not settle due to gravity

25
Q

What is a Suspension

A

Is a suspension bits of something are dispersed in a liquid like water. so the bits are dispersed simply because the liquid is moving. Once the liquid stops moving it settles do to gravity

Science Exam (6 decks)

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