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Chemistry Bootcamp > Unit 0 > Flashcards

Unit 0 Flashcards

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1
Q

What is Chemistry?

A

Chemistry is the study of matter, its composition and properties and the changes they undergo

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2
Q

What is a Substance?

A

Something that has a definite composition

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3
Q

What is a Composition?

A

A description of matter in terms of the types and amount of simpler substance that make it up

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4
Q

What are Properties?

A

Characteristics of the substance that give it its unique identity

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5
Q

What are examples of Physical Properties?

A

Density
Melting point
Hardness
Electrical Conductivity

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6
Q

What do Chemical Properties describe?

A

How a substance changes or interacts with other substances

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7
Q

What are examples of Chemical Properties?

A

Corrosiveness
Flammability
Reactivity with Acids

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8
Q

When do Chemical changes occur?

A

When a substance is converted to other substances

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9
Q

What changes in a chemical change?

A

The composition

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10
Q

What can cause a substance to change state?

A

Temperature or Pressure

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11
Q

What is Energy?

A

The ability to do work

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12
Q

What is Potential Energy?

A

Energy possessed due to position of an object relative to other object

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13
Q

What is Kinetic Energy?

A

Energy Possessed due to motion of an object

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14
Q

What can Matter be classified into?

A

Substances and Mixtures

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15
Q

What can Substances be classified into?

A

Elements and Compounds

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16
Q

What do Elements consist of?

A

One kind of atom

17
Q

What do Compounds consist of?

A

Two or more elements chemically bonded together into molecules or extended structures

18
Q

What are mixtues?

A

(Heterogenous or homogeneous) two or more substances whose proportions can vary

19
Q

How much does an electron weigh?

A

amu=1.66x10^-24 g

20
Q

What is the Atomic Notation

A

^A down Z by X

21
Q

What does A represent?

A

Mass Number

22
Q

What does Z represent?

A

Atomic Number

23
Q

What does X represent?

A

Chemical Symbol

24
Q

What is the mass of an atom expressed relative to?

A

Carbon 12 atom which is equal to 12 amu

25
Q

What is the Atomic Mass?

A

The average mass of all naturally occurring isotopes

Chemistry Bootcamp (1 decks)

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