WorksheetsChemistry Part 2 Quizizz
Total questions: 20
Worksheet time: 17mins
How are elements in the same group on the periodic table similar?
They have the same number of valence electrons.
They have the same number of electrons.
They have the same number of protons.
They have the same atomic mass.
What category of elements is found between the metals and nonmetals on the periodic table?
synthetic
metalloids
radioactive
noble gases
What do the atomic numbers represent?
number of atoms
number of protons
number of neutrons
number of electrons
Which best explains why the alkali metals are the most reactive group in the periodic table?
They are radioactive.
They have complete outer energy levels.
They have the highest atomic masses of any elements.
They have only one electron in their outer energy level.
Elements in the same column of the periodic table of the elements all...
have the same number of protons.
share the same atomic structure.
have similar physical characteristics.
share the same number of neutrons.
How many atoms are in one formula unit of the compound FeC5O5?
5
11
15
26
A student studies four chemicals in a laboratory investigation.
Which chemical cannot be further broken down into other chemicals using ordinary laboratory processes?
1
2
3
4
Which best describes the total amount of mass present in a chemical reaction?
It increases during the reaction.
It decreases during the reaction.
It remains the same during the reaction.
It may increase or decrease during the reaction.
Does the following equation support the law of conservation of mass?
2CrCl3 + 3NaOH → Cr2O3 + 3HCl + 3NaCl
You need a piece of paper to count it out your atoms. Make a t-chart with the atoms of the reactants on the left and the products on the right.
No, because there are too many compounds.
Yes, because every component is a compound.
No, because the number of reactants is less than the number of products.
Yes, because the number of atoms stays the same even when they are rearranged.
Which best explains the importance of balancing a chemical equation?
A balanced chemical equation indicates the type of reaction.
A balanced chemical equation indicates the loss of products and the gain of reactants.
A balanced chemical equation indicates the exact number of atoms involved in a reaction.
A compound containing potassium (K), chlorine (Cl), and oxygen (O) has the chemical formula KClO3. Which best represents a balanced chemical reaction showing the breakdown of KClO3 into simpler substances?
2KClO3 → 2KCl
2KClO3 → Cl2 + 3O2
2KClO3 → 2K + 3O2
2KClO3 → 2KCl + 3O2
Which group on the periodic table has the greatest number of metallic elements?
Group 2
Group 7
Group 13
Group 18
Which pair of elements has the most similar properties?
Li and B
I and Ca
K and He
N and P
What chemical group on the Periodic Table has 7 valence electrons?
Alkali Metals
Alkaline Earth Metals
Halogens
Noble Gases
Which of the following physical characteristics would not describe an element found among the transition metals?
Malleable
Ductile
Brittle
Conductive
The big number that appears in front of the chemical formula is the
Subscripts
Coefficients
Yields
Products
C6H12O6
