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Question
Limestone is composed almost entirely of calcite which has the chemical formula CaCO3. As a result, limestone is classified as ________.A) a mineral
B) a rock
C) both a mineral and a rock
D) neither a mineral nor a rock because it is organic
Answer
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Related questions
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A) coal
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A) reserve
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B) The structure is characterized by rings that form an interlocking network, forming planar sheets.
C) The structure is produced by flow in the igneous rock, aligning glass layers within the crystal structure.
D) The atoms are arranged in orderly arrangements that form strongly bonded sheets separated by weak bonds between the sheets.
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Use the Periodic table below to answer the following questions: Element 20, Ca, has what chemical property?
A) It behaves as a metal ion, giving up two electrons to form a +2 ion.
B) It tends to form covalent bonds and an ion with a charge of +1.
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D) It tends to be inert, and thus is dispersed throughout the crust.
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D) Any electron can exchange with adjacent atoms to form a bond; there is no preference.
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