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- Multiple ChoicePlease save your changes before editing any questions.
_________ are pure substances made of one type of atom.
Compounds
Mixtures
Elements
Photosynthesis
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is NOT an element?
Water
Nitrogen
Carbon
Sulfur
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following is an element?
Air
Carbon Dioxide
Steel
Oxygen
- Multiple ChoicePlease save your changes before editing any questions.
Every element has a unique name. Elements can also be represented by -
its chemical weight
mass
periodic group
its chemical symbol
- Multiple ChoicePlease save your changes before editing any questions.
Which correctly lists elements?
S2Fe, Al, Sr, O
C, Fe, Al, Sr
h2o, C, Al, S
c, fe, al, sr
- Multiple ChoicePlease save your changes before editing any questions.
What is the difference between an element and a compound?
An element is a pure atom and a compound is a combination of atoms.
An element is a pure substance and a compound is a combination of elements.
Elements are mixtures and compounds are chemically combined.
A element can be made of different atoms and substances while compounds are made of only two different elements.
- Multiple ChoicePlease save your changes before editing any questions.
Which substance is an element?
Water (H2O)
Ammonia (NH3)
Chlorine (Cl)
Carbon Dioxide (CO2)
- Multiple ChoicePlease save your changes before editing any questions.
Which substance is a compound?
SiH3
SiH3
sih3
sih3
- Multiple ChoicePlease save your changes before editing any questions.
Which physical properties are associated with most metals?
Dull, good insulator, brittle
Dull, good conductors, malleable
Shiny, good conductors, malleable
shiny, good insulator, malleable
- Multiple ChoicePlease save your changes before editing any questions.
Atoms are the basic units of ________.
elements
pure substances
the atmosphere
matter
- Multiple ChoicePlease save your changes before editing any questions.
Elements are found in ___________ (solid earth)
lithosphere
biosphere
hydrosphere
universe
- Multiple ChoicePlease save your changes before editing any questions.
Elements are found in the ___________ (living things).
atmosphere
hydrosphere
biosphere
lithosphere
- Multiple ChoicePlease save your changes before editing any questions.
Elements are found in the _________.
lithosphere, biosphere, hydrosphere, and the atmosphere.
lithosphere, elmentsphere, and the universe.
atmosphere, universe, and lithosphere.
periodic table of elements.
- Multiple ChoicePlease save your changes before editing any questions.
Au = _______
Amonia
Silver
Gold
Potassium
- Multiple ChoicePlease save your changes before editing any questions.
Subscripts tell how many ________ of each element are in the compound.
protons
neutrons
nothing, compound have exponents
atoms
- Multiple ChoicePlease save your changes before editing any questions.
If you are observing luster, you are looking to see if an item is ______________?
malleable
a good conductor
bendable
shiny
- Multiple ChoicePlease save your changes before editing any questions.
Metals are malleable, this means they are ___________.
shiny
good conductors of heat and electricity
can be hammered into sheets
dull
- Multiple ChoicePlease save your changes before editing any questions.
The ability to transfer heat and electricity refers to ________.
conductivity
luster
malleability
classification
- Multiple ChoicePlease save your changes before editing any questions.
If an element is shiny, malleable, and a good conductor, you would be looking for a ______________.
metal
non-metal
metalloid
element
- Multiple ChoicePlease save your changes before editing any questions.
If an element is dull, brittle, and a good insulator, you would be looking for a _________________.
metal
nonmetal
metalloid
element
- Multiple ChoicePlease save your changes before editing any questions.
If a mystery element is shiny, brittle and a conductor, you would look under which category?
Metals
Nonmetals
Metalloids
Elements
- Multiple ChoicePlease save your changes before editing any questions.
C12H22O11 how many many elements?
45
2
3
None, it's a compound
- Multiple ChoicePlease save your changes before editing any questions.
Table Sugar (C12H22O11) has how many atoms of hydrogen?
12
22
11
45
- Multiple ChoicePlease save your changes before editing any questions.
In baking soda (NaHCO3) the three represents a ________.
exponent
subscript
element
compound