Practice Questions 6 Flashcards by Sandi Davis John

Q

Balance this equation and name the type of reaction
KClO3(s) -> KCl(s) + O2(g)

A

2KClO3(s) -> 2KCl(s) + 3O2(g)

Decomposition

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Q

Balance this equation and name the type of reaction
Fe(s) + O2(g) -> Fe2O3(s)

A

4Fe(s) + 3O2(g) -> 2Fe2O3(s)
Synthesis

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Q

Balance this equation and name the type of reaction
C2H5OH(l) + O2(g) -> CO2(g) + H2O(l)

A

C2H5OH(l) + 3O2(g) -> 2CO2(g) + 3H2O(l)

Combustion

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Q

Balance this equation and name the type of reaction
HCl(aq) + Na2SO3(aq) -> NaCl(aq) + H2O(l) + SO2(g)

A

2HCl(aq) + Na2SO3(aq) -> 2NaCl(aq) + H2O(l) + SO2(g)

DD + decomp

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Q

Categorize each as metal, metalloid or nonmetal

Silver

A

Metal

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Q

Categorize each as metal, metalloid or nonmetal

Aluminum

A

Metal

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Q

Categorize each as metal, metalloid or nonmetal

Gallium

A

Metal

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Q

Categorize each as metal, metalloid or nonmetal

Silicon

A

Metalloid

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Q

Categorize each as metal, metalloid or nonmetal

Carbon

A

Non-metal

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Q

Categorize each as metal, metalloid or nonmetal

Oxygen

A

Non-metal

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Q

What are the number of occupied energy levels and the number of valence electrons in this Element?

Beryllium

A

2 & 2

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Q

What are the number of occupied energy levels and the number of valence electrons in this Element?

Chlorine

A

3 & 7

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Q

What are the number of occupied energy levels and the number of valence electrons in this Element?

Krypton

A

4 & 18

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Q

What are the number of occupied energy levels and the number of valence electrons in this Element?

Iodine

A

5 & 17

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Q

What are the number of occupied energy levels and the number of valence electrons in this Element?

Lead

A

6 & 28

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Q

Describe what happens to the radius of an atom as it
Gains an electron

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A

Increase

Q

Describe what happens to the radius of an atom as it
Loses an electron

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A

Decrease

Q

Describe the periodic trend in

Atomic radius

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A

Decrease to right
Increases down a group

Q

Describe the periodic trend in

Ionization energy

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A

Increases to right
Increases to top

Q

Describe the periodic trend in
Reactivity in metals

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A

Left
Bottom

Q

What types of elements combine to form
An ionic compound

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A

Metals + nonmetals

Q

What types of elements combine to form
A molecular compound

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A

Nonmetals + nonmetals
Covalent

Q

How does the bonding capacity of nitrogen differ from that of carbon?

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A

Q

Write the formula for
Calcium fluoride

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A

Write the formula for Zinc oxide

Write the formula for Tin(IV) iodide

Write the formula for Copper (II) sulfide

Write the formula for Potassium oxide

Name a polyatomic ion formed from a combination of 4 oxygen atoms and another non-metal element (eg chlorine)