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Chemistry S1 Test
Chemistry S1 Test
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Flashcards
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Questions
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Answers
1
Which type of mixture is the same throughout?
Homozygous
Homogeneous
Heterozygous
Heterogeneous
2
What is the unit of molar mass?
g/mol
liter
gram
meter
3
Type of bond between positive and negative ions
Single Replacement
Covalent bond
Combustion
Ionic bond
4
Organic chemistry studies any chemical containing:
Oxygen
Hydrogen
Energy
Carbon
5
Which of the following means the closeness of measurements?
Precision
Accuracy
6
What is the unit of mass?
gram
meter
g/mol
liter
7
Which is NOT a class of elements?
Nonmetals
Metalloids
Catalysts
Metals
8
Which of the following is NOTpart of the scientific method?
Making a hypothesis
Testing the hypothesis
Proving a scientific law
Developing a theory
9
Which of the following is an ion with a negative charge?
Election
Anion
Cation
Neutron
10
Which of the following is not true of metals?
Malleable
Poor conductors
Solid at room temperature
Ductile
11
What type of reaction is this?
Double Replacement
Single Replacement
Synthesis
Decomposition
12
Which of the following is a good explanation of something?
Scientific Law
Synthesis
Theory
Product
13
Is water a heterogeneous or homogeneous mixture?
Homogeneous
Heterogeneeous
14
What are the substances at the beginning of reactions?
Reactants
Isotopes
Products
Catalysts
15
Which is the variable that is dependent on the manipulated variable?
Manipulated variable
Responding variable
Experiment variable
Changing variable
16
What is the unit of length?
gram
meter
liter
g/mol
17
What type of reaction is this?
Double Replacement
Decomposition
Single Replacement
Synthesis
18
In a reaction, the catalyst is:
A reactant
Neither
A product
Both
19
What type of reaction is one substance breaking into two or more?
Synthesis
Decomposition
Double replacement
Single replacement
20
What is "Ag" in this picture?
Mass number
Atomic number
Symbol
21
What is "47" in this picture?
Atomic number
Symbol
Mass number
22
What is the name for the systematic approach scientists use to solve problems?
Problem Solving
Scientific Experiments
Scientific Method
Scientific Law
23
What is "108" in this picture?
Symbol
Atomic number
Mass number
24
What is the unit of volume?
g/mol
gram
meter
liter
25
_____P
4
+ _____ O
2
--> _____ P
2
O
5
Single Replacement
Decomposition
Synthesis
Double Replacement
26
What is the unit of mass?
gram
g/mol
liter
meter
27
What type of reaction is this?
Synthesis
Double Replacement
Single Replacement
Decomposition
28
Which of the following is proven and true 100% of the time?
Scientific Law
Reaction
Synthesis
Theory
29
Is a bowl of Skittles a heterogeneous or homogeneous mixture?
Homogeneous
Heterogeneous
30
How many shapes are in the p orbital?
3
1
5
7
31
What changes in a chemical change?
Color
Texture
Composition
Number of electrons
32
____Ag
2
S -->_____Ag + _____S
8
Decomposition
Single Replacement
Synthesis
Double Replacement
33
____Al + _____ FeO --> _____ Al
2
O
3
+_____ Fe
Double Replacement
Single Replacement
Decomposition
Synthesis
34
What is the name for anything that has mass and takes up space?
Atom
Liter
Molecule
Matter
35
Type of bond between two atoms that share an electron
Combustion
Covalent bond
Ionic bond
Single Replacement
36
Which law states that mass can be neither created nor destroyed?
Law of definite proportions
Law of conservation of matter
Law of multiple proportions
Law of conservation of mass
37
What type of reaction is this?
Double Replacement
Single Replacement
Decomposition
Synthesis
38
Which has properties of both metals and nonmetals?
Metals
Metalloids
Atoms
Elements
39
Which type of property is boiling point?
Extensive
Chemical
Intensive
Physical
40
What forms new products during a reaction?
Elements
Reactants
Products
Catalysts
41
Which of the following is NOT an area of chemistry?
Biochemistry
Physical
Bioanalytical
Organic
42
Is oil and vinegar salad dressing a heterogeneous or homogeneous mixture?
Heterogeneeous
Homogeneous
43
What is Avogadro's number?
6.22 x 10^23
6.02 x 10^13
6.02 x 10^23
6.22 x 10^13
44
Which two are ALWAYS equal?
Atomic number and number of neutrons
Number of neutrons and number of electrons
Atomic number and number of protons
Number of protons and number of electrons
45
Which of the following subatomic particles has a negative charge?
Electron
Neutron
Proton
46
Which means that you are getting the true value of what is being measured?
Accuracy
Precision
47
What is the charge of a proton?
Negative
Neutral
Positive
48
_____SiO
2
+_____ HF -->_____H
2
O + _____SiF
4
Decomposition
Single Replacement
Synthesis
Double Replacement
49
Which of the following is NOT a state of matter?
Liquid
Gas
Solid
Metal
50
Which comes after the arrow in a reaction?
Catalyst
Product
Reactant
51
Which is the variable that the scientist changes?
Experiment variable
Manipulated variable
Responding variable
Changing variable
52
Which of the following is an example of a physical change?
Burning wood
Baking a cake
Cutting paper
Dying hair
53
Which scientist changed chemistry from a science of observation to a science of measurement?
Mendeleev
Lavoisier
Rutherford
Dobereiner
54
Atoms of the same element with different masses
Catalyst
Element
Isotope
Cation
55
What is the simplist form of matter with a unique set of properties?
Compound
Molecule
Atom
Element
56
What is the smallest particle that retains it's identity?
Electron
Proton
Atom
Neutron
57
Which of the following is an example of a chemical change?
Melting an ice cube
Cutting hair
Crumpling a piece of paper
Car rusting
58
Which type of property is color?
Intensive
Chemical
Physical
Extensive
59
Which of the following is an ion with a positive charge?
Neutron
Election
Cation
Anion
60
What type of charge does a neutron have?
Neutral
Positive
Negative
61
The rule that states that atoms gain, lose, or share electrons in order to obtain 8 electrons
Scientific Law
Octet Rule
Avogadro's Law
Ionic Rule
62
Which type of mixture has two or more phases?
Homozygous
Homogeneous
Heterozygous
Heterogeneous
63
What speeds up a reaction but is not used up?
Cation
Synthesis
Catalyst
Product
64
Which part of the scientific method that is proved to be true?
Hypothesis
Theory
Scientific law
Synthesis
65
Which of the following is NOT a subatomic particle?
anion
electron
proton
neutron
