Chemistry, 30.01.2020 05:03 yogibear5806
At the most recent mineralogical society meeting, a member shows off her latest find! it is a non-silicate and a native element. which of the following cannot be this mineral and what would be the correct reason why not?
a. nacl – native elements are not combined with other elements. b. au – native elements cannot be minerals such as gold and silver. c. sio - native elements are not combined with other elements. d. pbs - native elements always contain silicon.
Answers: 2
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Acurium-245 nucleus is hit with a neutron and changes as shown by the equation. complete the equation by filling in the missing parts. 52
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An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
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At the most recent mineralogical society meeting, a member shows off her latest find! it is a non-s...
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