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All elements are naturally occurring.
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
NaCl is:
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
Which statement best summarizes the difference between an element and a compound?
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
The formula for sand is:
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
How many elements are in the chemical formula for glucose, C6H12O6?
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
Which of the following is correct?
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
Which of the following is an element?
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
Which element is abundant in the Earth's crust?
Silicon
OH is a compound.
salt.
SiO2
3
Iron
False
An element is a pure substance, and a compound is a combination of elements.
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