Answer:
A) Gold is an example.
D) There is only one type of substance present.
F) Composed of one type of atom with its own unique properties.
Explanation:
Hello! These are the correct answers! (I took the K12 quiz)
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Explanation:
Mole ratio of NH3 to NaNH2 = 2 : 2.
Moles of NaNH2 produced
= 4.3mol * (2/2) = 4.3mol.
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Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as
Hydrogen bonds
Yes, the only single cell organisms that exist are the cells that make up an organism