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Grade 9 Chemistry Review SNC 1D1 Flashcards | StudBud
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Grade 9 Chemistry Review SNC 1D1
Grade 9 Chemistry Review SNC 1D1
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Review for Grade 9 Chem
Flashcards
25 cards
F
Practice quiz
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Host live
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Questions
25
Answers
1
Pure substances cannot be...
a molecular element
a compound
an element
a mixture
2
The scientist that determined that atoms were mostly empty space was
Bohr
Rutherford
Dalton
Thompson
3
The number of carbon atoms in C
6
H
12
O
6
can't tell
6
12
24
4
A flaming splint pops in ___________ gas
chlorine
oxygen
hydrogen
carbon dioxide
5
What is the atomic number of this atom?
39
27
6.5
13
6
An alkaline earth metal will form a
won't form an ion
+1 ion
-2 ion
+2 ion
7
A block has a density of 0.6 g/cm
3
it would sink in pure water
it would float in pure water
8
The atomic number of an element is always:
Its weight
Its mass
The number of neutrons in its nucleus
The number of protons in the nucleus
9
Which group in the periodic table is the most reactive?
Alkaline Earth metals
Noble Gases
Lanthanide
Alkali Metals
10
Sublimating dry ice is an example of:
Both a chemical change and a physical change
Neither a physical change nor a chemical change
A chemical change
A physical change
11
Density is an example of a:
Both a physical and chemical property
Physical property
Property of a solid
Chemical property
12
What family do elements helium, neon, argon, and krypton belong to?
Halogens
Noble gases
Metals
Non-metals
13
What should you do before the chemistry unit test
study
cry
panic
all of the above
14
An indicator of a chemical change
a substance turns to a liquid
a substance that evaporates
a precipitate forms
frost forms
15
An example of a solution is...
Apple juice
carbon dioxide
orange juice with pulp
cereal
16
An isotope of carbon is C-14
it has less electrons than normal carbon
it has more protons than normal carbon
it has more neutrons than normal carbon
it is more stable than normal carbon
17
Pure substances with more than one type of element are called
solutions
heterogeneous mixtures
compounds
elements
18
A flaming split goes out in _____________ gas
oxygen
carbon dioxide
chlorine
hydrogen
19
What are the horizontal rows in the periodic table called?
Families
Periods
Groups
Metals
20
Suntanning is an example of:
A chemical change
Both a physical and chemical change
Neither a physical change nor a chemical change
A physical change
21
Water has a density of 1 g/mL. How much would 50mL of water weigh?
200 g
50 g
Impossible to determine
10 g
22
Oxygen has an atomic number of 8 and a mass number of 16. How many neutrons does it have?
16
can't tell
32
8
23
C
2
H
5
OH is an example of...
a compound
an atom
a mixture
an element
24
Covalent bonds
hold molecules together
are formed between non-metals
all of the above
are formed by a shared pair of electrons
25
A glowing splint relights in _____________ gas
oxygen
carbon dioxide
methane
hydrogen
