Elements And Compounds - Part 1 Question Preview (ID: 34355)


CBA 2 Review For TEKS 6.5A An Element Is A Pure Substance Represented By Chemical Symbols. 6.5B Recognize That A Limited # Of The Many Known Elements Comprise The Largest Portion Of Earth, Living Matter, Oceans, The Atmosphere. TEACHERS: click here for quick copy question ID numbers.

Which is a characteristic of compounds?
a) compounds are only pure substances
b) compounds are the smallest form of a particle
c) compounds are made of at least two types of matter
d) none of the above

Which of these elements is one of the major components of you, a living organism?
a) carbon
b) sulfur
c) chlorine
d) nitrogen

What is the name for the smallest particle of an element that maintains the chemical identity of the element
a) compound
b) atom
c) cell
d) nitrogen

Silicon is the element that is the major component of living organisms
a) true
b) false
c)
d)

All of the following are characteristics of carbon dioxide. Which characteristic makes it a compound
a) vital to life on Earth
b) gas at room temperature
c) made of two different elements
d) none of the above

What are the two main elements found in the lithosphere
a) oxygen and silicon
b) silicon and nitrogen
c) nitrogen and oxygen
d) hydrogen and nitrogen

What holds the Earth's atmosphere is place?
a) Oxygen
b) Velcro
c) Gravity
d) Tape

Which method would you use to separate a mixture of iron fillings and sand?
a) Filtration
b) Magnets
c) Evaporations
d) separate by hand

Na is the element sodium's
a) formula
b) compound
c) symbol
d) nickname

Which of the following is NOT a pure substance
a) an element
b) a compound
c) a mixture
d) None of these

Which of the following is an element
a) hydrogen
b) pizza
c) methane
d) diamonds

The substance that is being dissolved in a solution is the ____
a) solvent
b) molecule
c) solute
d) atom

Which of the following can be broken down by physical means?
a) an element
b) a compound
c) a mixture
d) a solution

Which of the following is a compound
a) copper
b) carbon dioxide
c) dirt
d) gold

What is a compound?
a) 2 or more substances that are together in the same place, but their atoms are not chemically bonded
b) the basic particle from which all elements are made
c) a substance made of 2 or more elements that are chemically combined.
d) a pure substance.

Which of the following is NOT a mixture
a) salad
b) water
c) chex mix
d) salt and pepper

Which of the following is a mixture?
a) Water
b) Gold
c) Kool-aid
d) Helium

What is a mixture that appears to be a single substance, but it is actually composed of 2 or more substances that are distributed evenly amongst each other?
a) a solution
b) a suspension
c) a mixture
d) a compound

What is a substance that cannot be broken down into any other substances by physical or chemical means
a) an element
b) a compound
c) a mixture
d) a solution

Which most accurately describes the hydrosphere?
a) layer of gas surrounding Earth
b) Solid Earth
c) all the water on Earth
d) all the living things on Earth

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