Common Assess 4
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The document contains 8 multiple choice questions about chemical bonding concepts such as: 1) The type of reaction that occurs between calcium and iodine atoms. 2) The expected location of atoms that undergo the reaction in question 1. 3) The charge of the CaBr2 ion. 4) Ranking atoms from greatest to least tendency to lose electrons. 5) Atoms most likely to share electrons in bonding. 6) Bond type formed between atoms based on their location on the periodic table. 7) Bond type formed by hydrogen, using HBr as an example. 8) Element that shares 2 pairs of electrons in bonding.
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1) The document is a chemistry teacher's notes for a lesson on chemical bonding. It includes definitions of key concepts like the octet rule and the three main types of chemical bonds.
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d.Hydrogen bond
e. a and b
2. What is the relationship between polar covalent bonds and hydrogen bonds?
a.There is no relationship between these two types of bonds
b.The formation of hydrogen bonds induces the formation of polar covalent bonds
c.The formation of polar covalent bonds creates the centers of partial positive and partial
negative charge that are required for the weak electrostatic interactions associated with hydrogen
bonds
d.Both types of bonds directly use pairs of shared electrons
e.Both types of bonds are based on electrostatic interactions.
3. What is the physical nature of the hydrogen bond?
a. There is a strong electrostatic attraction between a positive charge and a negative charge.
b. There is a weak electrostatic attraction between a positive charge and a negative charge.
c. Two electrons are equally shared in a bonding orbital between the oxygen and the hydrogen
atom.
d. Two electrons are unequally shared in a bonding orbital between the oxygen and the hydrogen
atom, such that a polar covalent bond is formed.
e. None of the above.
4. What type of bonding is illustrated when electrons are transferred?
a.Covalent
b.Polar covalent bond
c.Ionic bond
d.Hydrogen bond
e.None of the above
5. What common feature is shared by the sodium and chloride ions?
a.Both ions have unpaired electrons in their outermost energy levels.
b.Both ions have electrons in the third energy levels.
c.Both ions have eight electrons in their outermost energy levels.
d.Both ions have complete outermost energy levels, resulting in great stability.
e.Both c and d are correct
6. What type of bonding is illustrated when electrons are shared unequally?
a.Covalent bond
b.Polar covalent bond
c.Ionic bond
d.Hydrogen bond
e.None of the above
7. What feature of the bond between hydrogen and oxygen is most important in explaining how
water can act as a powerful solvent?
a.The electrons
b.The atomic nuclei
c.Ionic bonds
d.Covalent bonds
e.The unequal electron distribution that produces the partial positive andpartial negative charges
associated with the hydrogen bond
8. What type of bonding is illustrated when the oxygen of one water molecule bonds with the
hydrogen of another?
a.Covalent bond
b.Polar covalent bond
c.Ionic bond
d.Hydrogen bond
e.None of the above
9. An atom\'s orbital with one electron combines with another atom\'s orbital that also contains
one electron. What is produced?
a.A bonding orbital containing two electrons
b.A covalent bond
c.A molecule
d.A hydrogen bond
e.Responses a, b, and c
10. How many electrons are associated with a single covalent bond between two atoms?
a.Zero electrons
b.One electron
c.Two electrons
d.Four electrons
e.eight electrons
1. What types of bonding is illustrated in sharing of electrons?
a. Covalent bond
b.Polar covalent bond
c.Ionic bond
d.Hydrogen bond
e. a and b
2. What is the relationship between po.
Introduction to bonding
This document discusses different types of bonding between atoms, including ionic and covalent bonding. It addresses why atoms form bonds, the types of bonds present in pure elements versus compounds, and examples of ionic compounds like NaCl, H2O and their structures. Multiple choice questions are also included to test understanding of ion formation, ionic compound formulas, and which processes contribute to making ionic bond formation energetically favorable.
1- Elements are the primary types of matter- What make one element dif.pdf
1. Elements are the primary types of matter. What make one element different from another?
a
The number of protons, electrons, and neutrons is different.
b
The number of neutrons is different.
c
The number of protons and neutrons is different.
d
The number of protons is different.
2.What is an element's atomic number ?
a
The number of protons and neutrons in one atom of the element.
b
The number of protons in an atom of the element.
c
The mass of one atom.
d
The order in which it was discovered.
3. What is the name for multiple atoms that are bonded together?
4.
What is the difference between an atom and an ion?
a
An ion is an atom that does not have an equal number of electrons and protons, so it can have a
negative or positive charge.
b
An ion has a higher atomic number than the corresponding atom, and must share its proton with
a neutron.
c
An ion is an atom that turns into a anion or cation when it shares an electron with another
element.
d
An ion is a charged atom that doesn't have the proper balance of neutrons and protons.
5.
Match the chemical bond to it's definition:
Question 5 options:
a
metallic
b
covalent
ionic
When atoms share electrons so that their outer electron shells are filled.
When atoms lose an electron to another atom, balancing the charge of the two atoms.
When electrons can flow from atom to atom.
When the charge of an atom or a molecule is distorted by a neighboring atom or molecule,
setting up a weak attraction between them.
6.
When matter changes phase from a solid to a liquid, it is called:
Question 6 options:
a
melting
b
freezing
c
condensation
d
sublimation
7. What needs to happen for a substance to change state from a gas to a liquid...or the opposite?
a
Pressure, temperature, or both can change.
b
Both pressure and temperature need to change.
c
Only pressure needs to change.
d
Only temperature needs to change.
8. What happens to liquid water at room temperature if the atmospheric pressure is reduced
sufficiently?
a
It bubbles, releasing gases dissolved in the water.
b
It freezes at room temperature.
c
It boils/vaporizes at room temperature.
d
Nothing- boiling and freezing require temperature changes.
a The number of protons, electrons, and neutrons is different.
b The number of neutrons is different.
c The number of protons and neutrons is different.
d The number of protons is different..
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