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Science > Alchemy section 1 and 2 > Flashcards

Alchemy section 1 and 2 Flashcards

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1
Q

What does Aqueous mean?

A

containing water

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2
Q

what is an atom?

A

The basic unit of a chemical element

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3
Q

What is a chemical change?

A

when the bonds in an element changes

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4
Q

what is the chemical name?

A

name of the chemical compound

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5
Q

What is a chemical reaction?

A

process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

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6
Q

What is the chemical symbol?

A

A chemical symbol is a 1- or 2-letter internationally agreed code for a chemical element

EX: Na=sodium

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7
Q

definition of chemistry?

A

the branch of science that deals with the identification of the substances of which matter is composed

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8
Q

What is a compound?

A

A substance that is composed of two seperate elements

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9
Q

What is density?

A

how dense matter is

d=m/v

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10
Q

What is an extensive property?

A

A physical property that depends on the system size or amount of material

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11
Q

What is a group?

A

The vertical columns on the periodic table

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12
Q

what is a Hypothesis?

A

An if then statement that is a prediction of what will happen

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13
Q

what is an intensive property?

A

A physical property that is dependant on the system size or the amount of material

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14
Q

What is the law of conservation of mass?

A

It states that matter can neither be created or destroyed

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15
Q

What are the main group elements?

A

they are groups 1,2,13-18 on the periodic table

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16
Q

what is mass?

A

the weight of matter

17
Q

define matter?

A

Anything that takes up space. Mass + volume

18
Q

What is the meniscus?

A

the curved upper surface of a liquid in a tube

19
Q

define the periodic table?

A

a table of chemical elements arranged in order of atomic number

20
Q

what is periods?

A

the horizantel rows on the periodic table

21
Q

defintion of properties?

A

A characteristic of a sample of matter that is fixed by its state

22
Q

define reactivity

A

Reactivity is the tendency of a substance to undergo chemical reaction

23
Q

what are the transition elements?

A

groups 3-12 on the periodic table

24
Q

Define volume

A

amount of space a substance or object occupies

25
Q

what is water displacement?

A

when a solid is put in water to measure the amount the water rises to find the volume of the solid

26
Q
A
27
Q
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28
Q
A

Science (2 decks)

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