Answer:

Explanation:
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In this case, when referring to single replacement reactions, it is crucial for us to figure out the formula of the starting reactants; thus, we know zinc is Zn and lead (IV) chloride is PbCl₄. In such a way, the reaction proceeds as follows:

Which must be balanced as shown below:

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Answer:
The compound was a 3° alcohol.
Explanation:
The chromic acid test is positive for 1° and 2° alcohols, but negative for 3° alcohols.
1.Subscript,how many hydrogen molecules there are
2.No it is not balanced,oxygen is less than represented.
Answer:
OMG so big question!!!!!!!!!!!!
Answer:
Answer in explanation
Explanation:
Argon has 18 electrons. So to get the element in question, we only need to add 18 to the number of the filled electrons.
a. Germanium, atomic number 32
Other group members:
Silicon Si , Carbon C , Tin Sn , Lead Pb and Flerovium Fl
b. Cobalt , atomic number 27
Other group members:
Rhodium Rh , Iridium Ir and Meitnerium Mt
c. Technetium , atomic number 43
Krypton is element 36
Other group members are :
Manganese Mn , Rhenium Re and Bohrium Bh