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Duplicate of McKamy Periodic Table Flashcards | StudBud
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Duplicate of McKamy Periodic Table
Duplicate of McKamy Periodic Table
15 terms
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StudBud Administration
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305 plays
metals; nonmetals; metalloids; elements; molecules; compounds
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Unlike nonmetals, most metals tend to -
be gases at room temperature
conduct heat and electricity well
break easily when hammered
have less luster and shine
2
Carbon is an element and carbon dioxide is a compound. This is because carbon dioxide is -
useful to human beings
a gas at room temperature
made of two different elements
given off by green planrs
3
How many of these substances are elements?
1
3
2
4
4
All of these properties describe metals EXCEPT -
brittle
malleable
conductor
shiny
5
Which element is classified as a metalloid?
potassium
polonium
selenium
titanium
6
Compounds are different than elements because compounds are -
not able to be broken down into parts
made of the same type of atoms
combinations of two or more elements
a pure substance, elements are not
7
A section of the periodic table is provided. What is the chemical symbol for magnesium?
Magnesium
Mg
12
24.31
8
Which of the following helps a student classify an unknown element as metal/nonmetal/metalloid
measure its conductivity
determine its density
find its melting point
observe its color
9
What is the chemical formula for rust (iron oxide)?
C2H4O2
SiO2
Fe2O3
CaCO3
10
What is the difference between a mixture and a compound?
mixtures can be separated by physical means, compounds can't
compounds are held together by physical bonds
compounds can be separated by physical means, mixtures can't
mixtures are held together by chemical bonds
11
Conductivity is a physical property of matter that describes its ability to -
be hammered and rolled into thin sheets
reflect light from its lustrous surface
exist in nature as a solid, liquid, or gas
transfer thermal and electrical energy
12
Which element most likely has a shiny luster?
carbon
cobalt
hydrogen
arsenic
13
Does a compound have the same properties as the elements they are made of?
maybe
no
yes
my head hurts
14
A pure substance that cannot be broken down further by chemical or physical means is a ...
compound
metalloid
molecule
element
15
C
9
H
8
O
4
is the chemical formula aspirin. How many carbon atoms are present in this molecule?
8
4
9
21
