Which statement does NOT correctly compare silicon with another element?

Silicon conducts electricity as well as copper does.

Al, S, and Cl are elements found on the periodic table. Tests involving these elements show that at normal room temp.

aluminum is malleable and conducts electricity

What is true about the ratio of substances shown in the pie chart below?

There are about twice as many mixtures as pure substances

Look at the bar graph below that shows Rare Earth Elements (REE) based on their uses. Choose the correct one.

The demand for RRE has increased in the past 20 yrs and is likely to more.

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6.1.2 Periodic Table, Pure Substances & Mixtures

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Questions 14

Answers

1
What is the picture?
Pure Substance
Homogeneous Mixture
Heterogeneous Mixture
2
Which containers hold pure substances?
I & II
II & III
II & IV
III & IV
3
Hydrogen gas (H2) and oxygen (O2) gas chemically combining to form water (H2O). The newly formed liquid water is?
new metal
new homogeneous mixture
new pure substance
new heterogeneous mixture
4
Which statement does NOT correctly compare silicon with another element?
Silicon conducts electricity as well as copper does.
Silicon is a solid at room temperature, but argon is a gas.
Silicon is a better conductor of electricity than sulfur.
Silicon is less malleable than silver.
5
Al, S, and Cl are elements found on the periodic table. Tests involving these elements show that at normal room temp.
chlorine is malleable and conducts electricity
all three elements are malleable and conduct electricity
sulfur is malleable and aluminum conducts electricity
aluminum is malleable and conducts electricity
6
What is true about the ratio of substances shown in the pie chart below?
100% of the substances are mixtures.
There are about twice as many mixtures as pure substances
There are equal parts pure substances and mixtures.
Only about 10% of the substances are pure substances.
7
Students were investigating mixtures and mixed four different things. Which experiment created a heterogeneous mixture?
Result 1
Result 2
Result 4
Result 3
8
Element #4 in the image above is most likely
liquid at room temperature
a good conductor
a substance with a low density
attracted to magnets
9
Look at the bar graph below that shows Rare Earth Elements (REE) based on their uses. Choose the correct one.
The most important use for Rare Earth elements is making magnets.
The demand for RRE has increased in the past 20 yrs and is likely to more.
REE used for glass additives are not going to be needed in the future.
The materials that RRE are used for are not really needed in our society.
10
Based on the data in the table, which of these elements should be classified as metals?
Cobalt and silver
Cobalt and iodine
Carbon and iodine
Carbon and sulfur
11
Which element listed below, would not be a good choice to use for making a wire?
Arsenic (As)
Aluminum (Al)
Copper (Cu)
Silver (Ag)
12
What is the picture?
Heterogeneous Mixture
Homogeneous Mixture
Pure Substance
13
What is the picture?
Pure Substance
Homogenous Mixture
Heterogeneous Mixture
14
What is the picture?
Pure Substance
Heterogeneous Mixture
Homogeneous Mixture

6.1.2 Periodic Table, Pure Substances & Mixtures Flashcards | StudBud