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snc 2d 2016 > Chemestry > Flashcards

Chemestry Flashcards

1
Q

Physical Property

A

Description of a substance that does NOT involve the formation of a new substance.

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2
Q

Examples of Physical Properties (8)

A 
Colour
Texture
Density
Odor
Solubility
Taste
Melting Point
Physical State
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3
Q

Chemical Property

A

Description of what a substance does as it changes into one or more new substances.

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4
Q

Possible Evidence of chemical changes: (5)

A 
New colour appears
Heat or light is produced or absorbed
Bubbles of gas are formed
Precipitation- a solid forms into a liquid
The change is difficult to reverse
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5
Q

What is a period?

A

Row of elements on the periodic table(horizontal)

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6
Q

What is a group?

A

Column of elements on the periodic table(vertical)

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7
Q

Where are halogens located?

A

17th group

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8
Q

What is an ion?

A

A charged particle that results when an atom gains or loses one or more electrons.

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9
Q

How do you find the electrical charge of an ion?

A 
positive charge(protons) over negative charge(electrons)
Ex. 
\+11
-10
=+1
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10
Q

What is a cation?

A

positive charged ion.

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11
Q

What is an anion?

A

negative charged ion.

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12
Q

What is an ionic compound?

A

a compound made up of one or more positive metal ions and one or more negative nonmetal ions.

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13
Q

What is a molecular compound?

A

a pure substance formed with 2 or more nonmetals

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14
Q

What is a covalent bond?

A

a bond that involves the SHARING of outer electrons between nonmetal atoms

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15
Q

What type of reaction occurs when a new substance is formed?

A

chemical

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16
Q

what is the chemical equation for iron and sulfur?

A

Fe + S -> FeS + Energy

17
Q

State the law of conservation of mass

A

in any given chemical, the total mass of the reactants equal the total mass of the products

18
Q

Name the 4 types of chemical reactions

A

Synthesis
Decomposition
Single displacement
Double displacement

19
Q

What is the general pattern of synthesis

A

A + B -> AB

20
Q

What is the general pattern of decomposition?

A

AB -> A + B

21
Q

What is the general pattern of Single displacement?

A

A + BC -> AC + B

22
Q

What is the general pattern of double displacement?

A

AB + CD -> AD + CB

23
Q

Name 4 acids

A

stomach acid
lemon juice
apples
tomatoes

24
Q

name 4 bases

A

drain cleaner
bleach borax
baking soda

25
Q

what is the neutral number on the pH scale?

A

7

snc 2d 2016 (4 decks)

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