WorksheetsChemistry Test 1 Practice
Total questions: 35
Worksheet time: 9hrs 31mins
A(n) _________ has mass and takes up
space. ________ have a positive charge. ________ have a neutral charge.
___________ have a negative charge.
Atom, Protons, Neutrons, Electrons
Electrons, Protons, Neutrons, Atoms
Protons, Atoms, Electrons, Neutrons
What is an example of matter?
Rainbow
Thoughts
Classroom Table
A/An _________ is made up of one kind of atom.
Compound
Element
Chemical Reaction
Mixture
The smallest part of an element is an ____________.
Atom
Element
Chemical
Atomic Mass
Which is an example of a compound?
Carbon
Water
Trail Mix
Lemonade
What items are found in an element
block on the Periodic Table of Elements?
Atomic surface, chemical formula
Chemical symbol, atomic formula
Chemical mass, Chemical symbol
Atomic number, Atomic mass, element symbol
What are the majority of the elements
on the periodic table?
Nonmetals
Metals
Metalloids
The symbols on the periodic table are
First Letter Capitalized
One to three letters
Second or third letters in lower case
All of the above
The number in front of a chemical
formula is called a(n)
Subscript
Coefficient
Atomic number
Atomic weight
The number(s) after the Chemical Symbol in a chemical
formula is called a(n)
Subscript
Coefficient
Atomic number
Atomic weight
What is the formula for carbon
dioxide?
CO
H2O
CO2
C2O2
Na is the chemical symbol for
Carbon
Nitrogen
Neon
Sodium
Ca is the chemical symbol for
Calcium
Carbon
Chlorine
The chemical formula for oxygen gas is
O
O2
CO2
An example of an ionic bond is
HINT: IMN and CNN
Sodium Chloride (NaCl)
Sugar (C6H12O6)
Oxygen Gas (O2)
Carbon Dioxide (CO2)
Covalent bonds are formed when
Hint: IMN and CNN
2 Metals share electrons
2 Nonmetals share electrons
1 Metal and 1 Nonmetal share electrons
1 Metal takes an electron from a Nonmetal
Reactants are located:
2Mg + O2 --> MgO
On the right side of the chemical equation
On the left side of the chemical equation
After the yield arrow in the chemical equation
A balanced equation must have.........
An equal number of the same type of atoms on both sides
More atoms on the product side
More atoms on the reactant side
It doesn’t matter how many atoms there are on each side.
The law of conservation of matter can
be explained as:
The mass will be greater at the end of the chemical reaction.
The mass will be less at the end of the chemical reaction.
The mass will be equal on the reactant side and the product side.
The mass will be greater before the chemical reaction occurs.
How many atoms of each element does 4H20 have:
4 atoms of hydrogen, 1 atom of oxygen
8 atoms of hydrogen, 1 atom of oxygen
8 atoms of hydrogen, 4 atoms of oxygen
6 atoms of hydrogen, 4 atoms of oxygen
Which of the following chemical equations best support the Law of Conservation of Matter?
Mg2 + O--> MgO
2H2 + O2 --> 2H20
4H2 + O2--> 2H2O2
2Mg + O2 --> MgO
Which of the following molecules/compounds is correctly matched to its common name?
NaCl = Table Salt
H2O = Hydrogen oxygen gas
Fe2O3= Simple Sugar
O2 = carbon dioxide gas
How many atoms of Potassium are found in the following formula: 3KBr2
1
2
3
6
What are 2 requirements for something to be classified as matter?
takes up space, has mass
takes up space, has NO mass
has mass, living
From the periodic table square above, what is the number of electrons in copper?
63.546
29
12
From the periodic table square above, what is the atomic mass?
63.546
29
12
Is the following equation balanced?
Yes
No
How many elements of OXYGEN are on the REACTANT side of the equation?
AlOH3 + H2SO4 ---------> Al2(SO4)3 + H2O
1
2
3
5
________________are formed when nonmetals bond with nonmetals.
Covalent Bond
Ionic Bond
Mixture
A change that occurs when one or more substances change into entirely new substances with different properties.
Physical Change
Chemical Change
Mixture
An example of a physical change would be cutting paper
into small squares.
True
False
All are examples of a chemical change except
Burning wood into Ash
An apple turning brown
Ripping a sheet of paper in half
Iron turning to rust
A reaction in which energy is absorbed
Endothermic
Exothermic
A reaction that releases energy in the form of heat
Endothermic
Exothermic
In the following chemical formula, how many sodium (Na) atoms are there on the PRODUCTS side of the equation?
Na + O2 -------------> Na2O
1
2
3
0
