They use frogs because it easy to get and shows what is going on by what they eat what happened to them and other things.
I believe the statement given above is true. When solid mercury (ii) nitrate is being heated, a decomposition reaction happens. The solid would decompose into 3 different substances - solid mercury (ii) oxide, gaseous nitrogen dioxide, and oxygen. The balanced chemical reaction would be written as:
2Hg(NO3)2 = 2HgO + 4NO2 +O2
<span>Decomposition reaction is a type of reaction
where it involves a single compound breaking down into two or more products.
These reactions often requires an energy source thus it is an endothermic
reaction. This is evident for this reaction since we supplied heat to the reactant for the reaction to proceed.</span>
Answer:
its 3d orbital is completely filled.
Explanation:
jus took the test
<span>Nickel carbonate tetrahydrate</span>