Answer:
convection
Explanation:
as air is heated, it rises up and away from the heat source, cools then falls closer to the heat source over and over again.
There are metal is the ancer i think
Answer:
K₂EDTA
Explanation:
The additive in the lavender tube is potassium dihydrogen ethylenediaminetetraacetate (K₂EDTA).
EDTA is a powerful chelating agent, that is, it binds strongly to metal cations.
Its main function in hematology labs is to prevent the blood from clotting by binding the Ca²⁺ ions.
The question is asking to state the substance that is acting as the Bronsted Lowry base in the forward reaction, base on my research, I would say that the substance acting to said formulas is the NH3. I hope you are satisfied with my answer and feel free to ask for more if you have question and further clarification