Answer:
Preparation of Bases
By the direct union of a metal with oxygen Some metals when heated in air or oxygen form the oxides of the metals. ... By the action of water or steam on some active metals Some active metals like sodium and potassium react with cold water to form hydroxides with the evolution of hydrogen gas.
Answer:
energy that's waiting to happen
Explanation:
as an example if you throw a ball up in the air potential energy is going to happen when it comes down that's going to be energy basically I don't know if you get it but it's called potential energy
Answer: react each with a dilute strong acid, such as sulfuric acid
the NaHCO3 will leave a clear solution (sodium ) after bubbling
NaHCO3 + H2SO4(aq)>>> CO2 (g) + H20 + Na2SO4 (in solution)
Calclum will leave a NOT clear liquid (Calcium)
Ca(HCO3)2 + H2SO4(aq)>>> CO2 (g) + H20 + CaSO4 (precipate)
The study of metals and the process for refining and making things from them is called metallurgy.
Metallurgy is said to be the scientific study both of the extraction and refining process of metals from their ores.
This process includes steps such as grinding of the ore also called ore pulverization.
Ore is crushed to increase its surface area for purpose of increasing the level of its reactivity.
Sometimes, the ore is heated in the presence of oxygen to turn the ore into and oxide. This process is known as roasting.
<span>No uses regarding the human body; it's a noble gas and does not react with anything.</span>
