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Hi! Please help me!

Which of the following is the combination of 2 elements? Explain.
a) Si b) CO c) He d) Fe

User Krypru
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2 Answers

4 votes
Tbh i don’t even knoww
User Jrenk
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7 votes
b) CO
Si is silicon
CO is carbon monoxide
He is helium
Fe is iron

You can tell because both letters are capitals
User Sayguh
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