What is made up of usable amounts of metallic elements? carbonate ore silicate a mineral ( asap im getting timed)

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Give the set of reactants (including an alkyl halide and a nucleophile) that could be used to synthesize the following ether: draw the molecules on the canvas by choosing buttons from the tools (for bonds and charges), atoms, and templates toolbars, including charges where needed. ch3ch2och2ch2chch3 | ch3

How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene