What is the standard measurement of copper pipe and tubing?
You should of asked this in the geology section.
No, she is right. Heating dolomite decomposes the carbonate and forms the oxide. And reacting magnesium oxide with acid does not produce gas.
She is right in a way about the effervesence althought both contain CO2 but think of it like this in test tube A the MgCO3 just decomposed it didnt really react with anything to have that effervesence effect(cause the CO2 just escapes theres no soultion that it has to escape from) kind of like breathing but in test tube B the MgCO3 reacted with HCl to form CO2 after a reation and the CO2 had to escape from a solution in a highly exothermic reaction which created that effervesence effect so i think she is right about that but about the dissolving part im not sure because MgCO3 in the test tube A isnt really dissolved just forms MgO
Copper pipe is rare (if available at all). About 50 years ago, threadless copper pipe (T.P.) was available with pipe gauge wall thickness which was brazed rather than threaded. Copper now comes in rigid or flexible inch sizes in several grades. DWV thin wall for Drain, Waste, and Vent Type M light duty Type L average duty (domestic interior water service) Type K heavy duty (exterior or buried service) Copper tube is assembled with compression fittings, flare fittings (tools and skill required), or soldering. For physical dimensions search: Table of copper pipe size Table of copper tube size
