stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemical Reactions Unit Test Flashcards | StudBud
Explore
/
Chemical Reactions Unit Test
Chemical Reactions Unit Test
31 terms
·
StudBud Administration
·
545 plays
Imported from external platform
Flashcards
31 cards
F
Practice quiz
P
Host live
L
Questions
31
Answers
1
Covalent bonding can only happen between
when 2 non metal atoms bond
when 2 metal atoms bond
when a non metal and a metal atom bond
2
What 2 sub atomic particles make up the nucleus of an atom?
electron and proton
electron and neutron
neutron and proton
proton and krypton
3
The periodic table
is arranged by the number of protons
is arranged by the alphabet
is arranged by flavor
is arranged by mass
4
The electrons in the outermost shell, determines bonding
nucleus
valance electron
neutron
proton
5
What happens during a chemical change?
bonds break, new bonds form
all of the electrons in the atom are lost
atoms change into new types of atoms
6
What does the atomic mass represent?
protons only
protons and neutrons
electrons
protons and electrons
7
What are the rows and columns called in the Periodic Table of Elements?
groups and periods
groups and atomic number
periods and energy levels
atomic numbers and periods
8
Which of the following best describes the atomic number
the decimal number, 107.868
4d
5s1
the whole number, 47
9
Which of the following speeds up a chemical reaction
increased surface area
catalyst
low temperature
10
The atomic number equals
protons, electrons
protons, neutrons
hot cheetos
electrons, neutrons
11
Valence electrons
protons in the nucleus
electrons closest to the nucleus
do not exist
determines bonding, number of electrons in outer shell
12
An atomic particle with no charge
proton
electron
neutron
13
Which of the following is NOT a sign that a chemical reaction has happened?
odor is produced
change in color
melting ice cube
formation of gas bubbles
14
The building blocks of matter; made up of protons, neutron and electrons
Nucleus
atomic number
strong force
atoms
15
A positively charged atomic particle
proton
neutron
electron
16
The number that is used to arrange elements on the periodic table
neutrons
atomic number
atomic mass
17
The atomic mass is
just protons
protons + neutrons
equals the number of shells
protons + electrons
18
Which of the following is an example of an endothermic reaction?
a piece of wood burning
a firework exploding
photosynthesis
a candle burning
19
An exothermic reaction
releases energy
has nothing to do with energy
absorbs energy
20
The Law of Conservation of Mass states
new atoms are created with every chemical reaction
atoms are not created/destroyed during a chemical reaction
atoms do not rearrange during a chemical reaction
21
Element
more than two different elements combined
matter that is made up of one type of atom
average mass of isotopes
water, fire, earth, wind
22
How many electrons can fit on the first energy shell?
1
16
8
2
23
An example of an exothermic reaction is
glow stick after chemicals mix
cold pack
cake baking
24
An element that has properties of both metals and non metals
metal
metalloids
non metal
25
Which of the following best describes the atomic mass of an atom
12.011
C
6
26
Metallic bonding is weak compared to the other types of bonding because
electrons are not good conductors
electrons do not exist in the outer shell
electrons move freely in all directions throughout metal
electrons are in a fixed position
27
You can determine the number of shells an atom has by it's
cheese
period
atomic mass
group
28
What is the current theory of atomic structure?
electrons are fixed and do not move
electrons move within an electron cloud
29
An element that is shiny and conducts heat and electricity well.
metal
metalloid
non metal
30
An element that does not conduct heat and electricity well.
metalloid
non metal
metal
31
Elements in the periodic table are arranged by
atomic number
chemical reactivity
number of neutrons
atomic weight
