Chemical Bonding & Reactions Practice
Authored by Shauna Baltes
Chemistry
8th Grade
NGSS covered
Used 24+ times
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36 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between an ionic bond and a covalent bond?
Ionic bonds form when electrons are transferred between atoms; covalent bonds form when electrons are shared between atoms.
Ionic bonds form when nuclei fuse; covalent bonds form when nuclei split.
Ionic bonds involve sharing of electron pairs; covalent bonds involve transfer of protons.
Ionic bonds exist only between nonmetals; covalent bonds exist only between metals.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Predict what will happen to the atom shown (beryllium with 4 protons and 5 neutrons, two electrons) if it were to combine chemically with sulfur.
It will lose two electrons to sulfur to become Be2+, forming an ionic compound.
It will gain two electrons from sulfur to become Be2−, forming an ionic compound.
It will share electrons equally with sulfur to form a nonpolar covalent bond.
It will not react because it already has a full outer shell.
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of ion (cation or anion) will an atom of chlorine form when it reacts chemically?
Cation with a positive charge
Anion with a negative charge
Neutral atom with no charge
Variable charge that is positive or negative in equal amounts
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Does the equation in the image demonstrate the Law of Conservation of Mass?
YES
NO
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following compounds are covalent?
NaCl
Al2O3
CaS
C2H6
Tags
NGSS.HS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the type of chemical reaction and find the missing value:
7g of Fe+ __ g of O2 → 15g of Fe2O3
Decomposition
12g of O2
Synthesis
8g of O2
Single Displacement
10g of O2
Synthesis
5g of O2
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which group of elements on the periodic table would an atom of nitrogen most likely bond with?
Group 1 (alkali metals)
Group 2 (alkaline earth metals)
Group 17 (halogens)
Group 13
Tags
NGSS.HS-PS1-1
NGSS.HS-PS1-2
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