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Intro - Chemistry Yr 11 Flashcards | StudBud
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Intro - Chemistry Yr 11
Intro - Chemistry Yr 11
30 terms
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Answers
1
Organic means
vegan
safe and edible
containing carbon
fresh
2
Which of the following is not an Element?
Silicon
Manganese
Iron
Diamond
3
The modern periodic table lists elements in order of their what?
Reactivity
Atomic Weight
Atomic Radius
Atomic Number
4
Which process is used to seperate Iron filings from wood shavings?
Sieving
Decanting
Magnetism
Seperating Funnel
5
What is the strongest Intramolecular bond?
Dispersion
Covalent
Dipole - Dipole
Ionic
6
The group containing only alkali metals is?
Mercury, Tin, Cobalt
Calcium, Iron, Cobalt
Francium, Sodium, Lithium
Sodium, Francium, Tin
7
An atom has equal protons and neutrons, its atomic mass is 16. How many neutrons does it have?
32
8
4
16
8
Each element is defined by?
The number of compounds in an element
The number of neutrons + protons
The number of neutrons
The number of protons or electrons
9
Any substance that occupies space and has mass is a?
matter
an element
an atom
a reaction
10
Chemical combination of two or more atoms
Compound
Isotope
Ion
Molecule
11
Examples of Homogeneous mixtures include
Orange juice without pulp, Milk, salt in water
Orange juice with pulp, sand in water, strawberry in jelly
12
A heterogeneous mixture is:
A mixture with a suspension
A solution that is the same throughout
An element in solution
A mixture whose components vary in proportion throughout the solution
13
Hot air is less dense than cold air
True
False
14
A substance with a Ph of 7.0 is
A Base
Acidic
neutral
Alkaline
15
What is the universal Solvent
Solids
Oil
Cyclohexane Wax
Water
16
What is the max number of electrons in the 3rd shell
8
32
18
2
17
Which of the following is not a physical property?
Melting point
Reactivity
Density
Partical Size
18
Models can be useful in chemistry because they can:
Help to visualise Ideas
All of the above
Be used as a basis for predictions
Assist in the understanding of chemical reactions
19
What is the orbital notation electron configuration of calcium?
C
A
D
B
20
Vertical Columns in the periodic table are referred to as what?
Periods
Rows
Groups
Actinides
21
An element with atomic number 19 and with 20 neutrons would have an electron configuration of:
A
C
B
D
22
What is a solvent?
The thing that does the dissolving
Salt
Potatoes
The thing that is dissolved
23
What is found in the nucleus of an atom
Electrons Only
Neutrons and Protons
Neutrons Only
Electrons, Protons and Neutrons
24
Which particle in the atom has the lowest mass
Proton
Copper
Neutron
Electron
25
Calculate the relative atomic mass of bromine if it is made up 55% Br-79 and 45% Br-81
80
69.90
79.90
79.42
26
The science that deals with composition, structures and properties of matter?
Biology
Chemistry
Investigating Science
Physics
27
What is the relative charge of an electron
+1
-1
-0
0
28
What is the relative charge of a neutron
+1
+2
0
-1
29
What is the electron configuration of sodium
2,8,1
2,9
1,9,1
2,8,8,2
30
A substance with a Ph of 8.9 is
Alkaline
Neutral
Combustible
Acidic
