167g. Because the law of conservation of mass says that matter can not be created or destoryed, in a chemical reaction.
They form alkenes, not sure what group that falls under but B,C, and D definitely cant be the answer
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Because Boron likes to lose 3 electrons when it undergoes ionization, we draw a boron ion like a helium atom, with just 2 electrons in the first shell, and 0 in the second
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I can't answer that Po sorry
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sin theta equals to cos theta then the value of sin 2 theta