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Science/Hass > Science: Reactions > Flashcards

Science: Reactions Flashcards

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1
Q

State the Law of Conservation of Mass

A

A principle in which states that mass cannot be created nor destroyed

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2
Q

What is the name given to chemicals that react in a reaction

A

reactives

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3
Q

What is the name given to chemicals that are formed in a chemical reaction

A

products

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4
Q

What are the products for Acids and Metals

A

Hydrogen Gas and Salt

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5
Q

What are the products for Acids and Bases

A

Salt and Water

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6
Q

What are the products for Acids and Carbonate?

A

Carbon Dioxide, Water and Salt

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7
Q

In an exothermic reaction what changes?

A

Heat is increased and energy is released

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8
Q

In an endothermic reaction what changes?

A

Heat is decreased and energy enters

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9
Q

State the kinds of reaction needed to know

A

Combustion, Rusting, Exo & Endothermic, oxidation, and all reactions made with Acids.

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10
Q

What are the two kinds of changes

A

Physical and Chemical

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11
Q

What are some physical changes

A

Position, shape, size, and state (liquid, solid, gas)

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12
Q

What are some chemical changes

A

Release of light or sound, new gas, colour change, disappearance or formation of solid, temperature change

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13
Q

When naming salts, how is it ordered?

A

Element naming order must be Base to Acid: E.g – Barium Sulfate (Barium is base, sulfate is acid)

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14
Q

What is an ion?

A

an Ion is a group of atoms that has an unbalance of electrons, either more or less

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15
Q

What is the formulae to create ionic compounds?

A

Metal Ion + Non Metal Ion

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16
Q

What is a compound?

A

Made of two or more elements: chemically combined

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17
Q

What is an isotope?

A

The same element as original, but with different number of neutrons

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18
Q

Give 3 isotope examples

A

C-12, C-13, C-14, etc…

19
Q

What group are alkali metals in?

A

Group 1

20
Q

What group are Alkaline Earth Metals in?

A

Group 2

21
Q

What group are Halogens in?

A

Group 7

22
Q

What group are Noble Gases in?

A

Group 8

23
Q

Are noble gases reactive? Why or why not

A

No they are not reactive because their outer shell is full with 8 valence electrons

24
Q

Properties of Alkali Metals

A

Very reactive, shiny and soft metals

25
Q

Properties of noble gases

A

Gas, non reactive

26
Q

Properties of Alkaline Earth Metals

A

Soft, Shiny, Reactive

27
Q

Properties of Halogens

A

Gas, all are reactive

28
Q

What are the 4 named groups

A

Alkali Metals, Alkaline Earth Metals, Halogens, Noble Gases

29
Q

Write down 3 examples of worded equations

A

Did you do it? Well Done!

30
Q

What is an independent variable?

A

The variable that is changed by researcher

31
Q

What is a dependent variable?

A

The variable that is measured. The value is changed because of the I.D Variable

32
Q

What is controlled variable?

A

The variable that must maintain the same through all experiments

33
Q

On a graph, what axis does the Dependent variable go?

A

Y axis

34
Q

On a graph, what axis does the Independent variable go?

A

X axis

35
Q

What is a cation and an anion?

A

positively-charged ions and negatively-charged ions

36
Q

What is a neutralisation reaction?

A

Reaction of acid and bases

acid + base -> salt + water

37
Q

Substance 1 has a pH rating of 8

If 1 were to mix with vinegar what pH rating is it?

A

Might result in a pH around 4-6, slightly acidic but not strongly so.

38
Q

Name all kinds of reactions needed

A

Acid-Base, Acid-Metal, Acid-Carbonate, Combustion, Corrosion/Rusting

39
Q

Write the worded equation for Combustion

A

Fuel+Oxygen Gas -> Carbon Dioxide+Water

40
Q

What is the compound for fuel

A

C4H10 (subscript)

41
Q

What is the worded equation for corrosion

A

Iron+Oxygen -> Iron Oxide

42
Q

What is the compound symbol for Iron Oxide

A

Fe203 (subscript all numbers)

43
Q
A

Science/Hass (10 decks)

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