3 covalent bonds (there are 2 electrons in the first orbital and 5 in the second. You still have room for three more)
Those would be called indicators , simply google them and you should find many. I'll leave some examples "bromophenol blue" "Methyl red" and "phenol red".
Answer:
I think the answer is C because I know
Answer: The answer is Fossil A is younger than the index fossil.
Explanation: Because it’s the newest layer
A catalyst is a chemical substance that hastens the chemical reaction. This does not participates in the creating the product(s) but allows it to be formed easily. With this, it is now known that the rate of the reaction becomes relatively higher compared to the uncatalyzed reactions.
Therefore, the answer to this item is the rate of the reaction becomes faster.
