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Grade 10 Chemistry > Chemistry Unit > Flashcards

Chemistry Unit Flashcards

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1
Q

What is the law of conservation of mass?

A

The law of conservation of mass is a law that applies when creating new substances. It implies that mass can neither be created nor destroyed when creating new compounds.

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2
Q

Element family of non-reactive, inert gases:

A

Noble gases

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3
Q

The outcome of combining an acid and a base:

A

Neutralization

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4
Q

Burning these products produces carbon dioxide and contributes to global warming:

A

Fossil Fuels

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5
Q

Relieves the painful effects of acid reflux:

A

Antacids

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6
Q

Charged particles:

A

Ions

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7
Q

A strong bond containing metals and non metals

A

Ionic compounds

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8
Q

Negatively charged particles that orbit atoms:

A

Electrons

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9
Q

Describes a chemical reaction that absorbs heat:

A

Endothermic

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10
Q

A product not made naturally:

A

Synthetic

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11
Q

The type of particles located in an atoms outer orbit:

A

Valence electrons

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12
Q

Describes a chemical reaction that releases heat:

A

Exothermic

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13
Q

The study of matter, its properties and its changes or transformations:

A

Chemistry

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14
Q

a pure substance containing 2 or more elements in fixed proportions:

A

Compound

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15
Q

Bond resulting from 2 or more non-metals sharing one or more pairs of electrons:

A

Covalent bond

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16
Q

Compound composed of hydrogen and carbon:

A

Hydrocarbon

17
Q

properties of this substance include sour taste, produces hydrogen ions, and turns blue litmus paper red

A

Acids

18
Q

A substance that contains only one type of particle:

A

Pure substance

19
Q

Properties include bitter tase, slippery in aqueous solution, and it produces hydroxide ions:

A

Bases

20
Q

the chemical reaction that occurs when a substance reacts very quickly with oxygen to produce energy:

A

Combustion

21
Q

anything that has mass or takes up space:

A

matter

22
Q

a pure substance that cannot be broken down into anything simpler

A

Element

23
Q

The Family in the far right column of the periodic table:

A

Noble gases

24
Q

7 Diatomic elements

A

Hydrogen
Nitrogen
Oxygen
Fluorine
Chlorine
Bromine
Iodine

25
Q

General formula for 5 different types of chemical reactions

A
  1. Synthesis- A+B=AB
  2. Decomposition- AB-> A-B
  3. Single Displacement- A+BC->AC+B
  4. Double Displacement- AB+CD-> AD+CB
  5. Combustion-
26
Q

4 Factors affecting the rate of chemical reactions

A
  1. reactant concentration
  2. surface area
  3. temperature
    4 .Catalysts
27
Q

5 characteristics of acids

A
  1. Sour in taste
  2. turns litmus paper red
  3. Produce hydrogen ions
  4. React with metals to form hydrogen gas
  5. React with carbonates and liberates carbon dioxide gas
28
Q

5 characteristics of bases

A
  1. Bitter Taste
  2. Turns red litmus paper blue
  3. Neutralize acids
  4. Conductive of electricity
  5. feels Slippery or soapy
29
Q

What is a chemical indicator. Provide 4 examples

A

Litmus paper
red cabbage
tumeric
china rose

30
Q

How many times more acidic is a substance with a PH of 3.0 compared to one with a PH of 6.0

A

Since a substance with a Ph of 6 is neutral, a substance with a PH of 3 would be much more acidic

31
Q

a welders torch combines acetylene and oxygen gases to form carbon dioxide and water.

what is the proper word equation?

convert the word equation into a skeletal formula.

balance the chemical equation.

classify the type of reaction

A

word equation:
Acetylene + Oxygen –> Carbon dioxide + water

Skeletal Formula:
C2H2 + O2 –> CO2 + H20

Balanced equation:
2C2H2 + 5O2 –> 4CO2 + 2H2O

Type of Reaction = Combustion reaction

32
Q
A

Grade 10 Chemistry (1 decks)

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