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Grade 9 Science Exam - Chemistry Flashcards | StudBud
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Grade 9 Science Exam - Chemistry
Grade 9 Science Exam - Chemistry
37 terms
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A #Grade9ScienceExam #Chemistry #ScienceExam
Flashcards
37 cards
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Questions
37
Answers
1
What does matter need to have
Density
Volume
Mass & Volume
Mass
2
Ionic Bonds: atoms exchange electrons, happens between ...
A non-metal and a metal
Two non-metals
Two metalloids
A non-metal and a metalloid
3
How discovered the electron
Rutherford
Thompson
4
Most groups contain elements that have the same number of ...
Neutrons
Valence electrons
Electrons
Protons
5
Covalent Bonds: Resulting particle is called a molecular compound
False
True
6
Which of the following is the correct equation
m = D*V
D = V*m
D = m/V
D = V/m
7
What colour are the non-metals
Red
Yellow
Blue
8
What is "The study of properties of matter and composition of matter and how they relate"
Physics
Chemistry
Electricity
Ecology
9
On the periodic table, Horizontal rows are called ... Vertical columns are called ...
Parallels and Meridians
Periods and Groups
10
Application of heat increases the speed of particles which weakens attraction between particles
True
False
11
4Mg₃(PO₄)₂ = ... Oxygen Atoms
32
8
4
18
12
Co₂ = ...
2 Cobalt Atoms
1 Cobalt Atom, 2 Oxygen Atoms
13
Which of the following isn't a Classification of Elements
Representative Elements
Outer Transition Elements
Transition Elements
Inner Transition Elements
14
Modern day periodic tables are organised by ...
Number of Neutrons
Number of Protons
Number of Electrons
Atomic weight
15
Which of the following isn't a subatomic particle
Protons
All of the above
Electrons
Neutrons
16
Which of the following isn't true about gas
Strong attraction between particles
Gasses can easily take the shape of their container
Lots of space between particles
Particles in gases have lots of motion
17
This is Atomic Notation
True
False
18
Covalent Bonds: atoms exchange electrons, happens between ...
Two non-metals
Two metalloids
A non-metal and a metal
A non-metal and a metalloid
19
Who theorised "Elements exist as discrete packages of matter"
Thompson
Dalton
Bohr
Rutherford
20
What is true about a stable atom
It has the same amount of electrons and protons
It has the same amount of neutrons and protons
It is a positive Ion
It has a full outer ring of electrons
21
A mixture that is uniform throughout
Homogeneous
Heterogeneous
22
One type of matter with a unique set of substances
Atom
Pure substance
Element
Compound
23
If an atom gains electrons, it becomes a ... ion
Negative
Positive
24
Who discovered the neutron
Thompson
Bohr
Dalton
Chadwick
25
What colour are the metals
Blue
Red
Yellow
26
Which of the following isn't true about liquids
Particles in liquids vibrate, but don't move
Strong attraction between particles
Liquids can't easily take the shape of their container
Some space between particles
27
Which of the following isn't true about solids
Very strong attraction between particles
Very little space between particles
Particles in solids only vibrate
Solid can easily take the shape of their container
28
The transition of 'Gas to solid' is called what
Freezing
Sublimation
Deposition
Melting
29
The obtain a full outer orbit ...
Share electrons with another atom
Share protons with another atom
30
As substances transition from state to state, the number of particles that make it up
changes
True
False
31
The goal of chemical bonding is that the atoms involved can obtain a full outer orbit
False
True
32
What are particles of matter called
Mixtures
Elements
Atoms
Electrons
33
4Mg₃(PO₄)₂ = ... Magnesium Atoms
7
4
12
14
34
What was Niels Bohr's contribution to the atom
Discovered the specific patterns of electrons in the "shell"
Discovered the Nucleus
Discovered the electrons
Found that most of the atom is empty space
35
What is an atom with a positive or negative charge called
Mixture
Ion
Homogeneous
Element
36
An isotope is "1 of 2+ atoms with the same atomic number but a different number of ..."
Protons and Electrons
Neutrons
Protons
Electrons
37
What is Sublimation
Solid to Gas
Gas to Solid
