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Daily Concept Quiz
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1

If you mix sugar and cinnamon together, you have
A)an element.
B)a compound.
C)a homogenous mixture.
D)a heterogeneous mixture.
2

Chocolate milk is not a compound because
A)milk atoms don’t share electrons with chocolate atoms.
B)the proportion of chocolate to milk can change.
C)chocolate doesn’t mix completely in milk.
D)it is not made of pure elements.
3

After you polish a silver spoon, it stays fairly shiny for a fairly long period of time. What does this tell you about the chemical activity of silver?
A)It is not very active
B)It is very active
C)Nothing
4

Suppose metal A combines with fluorine and produces a certain amount of heat in the resulting chemical reaction. When metal B combines with fluorine, it is found to produce one fourth of the amount of heat. Which metal forms a more stable compound with fluorine?
A)Metal A
B)Metal B
C)Both compounds are equally stable
D)There is not enough information to tell
5

Which of the following groups is not very chemically active?
A)Halogens
B)Alkalis
C)Inert gases
D)Metals
E)Nonmetals
6

Suppose a group of scientists claims to have discovered a new inert gas with an atomic number of 17. You claim
A)this is possible but unlikely.
B)this is impossible because it is impossible for an element with atomic number 17 to be in the group of inert gases.
C)this is impossible because there is no room on the periodic table for a new inert gas with this small of an atomic number.
D)this is impossible because both B and C are valid reasons against it.
7

What do we know about the activity of alkali atoms?
A)All alkali atoms have the same high level of chemical activity.
B)As you go from top to bottom in the periodic table, the activity of alkalis increases.
C)As you go from top to bottom in the periodic table, activity of alkalis decreases.
D)Alkali atoms are chemically inactive.
8

What do we know about the activity of nonmetals?
A)All nonmetals have the same high level of chemical activity.
B)As you go from top to bottom in the periodic table, activity of nonmetals increases.
C)As you go from top to bottom in the periodic table, activity of nonmetals decreases.
D)Nonmetals are chemically inactive.
9

Which statement is true about nonmetals and metals?
A)Metals try to fill nearly closed shells while nonmetals tend to give up electrons from nearly empty shells.
B)Nonmetals try to fill nearly closed shells while metals tend to give up electrons from nearly empty shells.
C)Metals tend to have closed electron shells.
D)Metals and nonmetals cannot be classified in terms of closed or empty electron shells.
10

When metal atoms combine with nonmetal atoms in a chemical reaction, we generally expect that the type of bond that forms is
A)an ionic bond where the atoms share one or more electrons.
B)an ionic bond where the two atoms exchange one or more electrons.
C)a covalent bond where the atoms share one or more electrons.
D)an covalent bond where the two atoms exchange one or more electrons.
11

Which of the following represents a balanced equation for combining sodium metal (Na) with water (H20) to produce NaOH and hydrogen gas (H2)?
A)Na + H2O → NaOH +H2
B)Na + H3O → NaOH +H2
C)Na + H2O → NaOH +H
D)Na2 + 2H2O → 2NaOH +H2
E)2Na + 2H2O → 2NaOH +H2





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