The scientific method has five basic steps, plus one feedback step: Make an observation. Ask a question. Form a hypothesis, or testable explanation.
A. MnS(s) + 2H + (aq) > Mn2 + (aq) + H2S(g)
Is correct hope this helps i have done this before
Explanation:
A pH helps us to determine whether a solution is basic or acidic in nature.
If pH is less than 7 then the substance or solution is acidic in nature and if pH is more than 7 then the substance or solution is basic in nature.
Also, acids are sour in taste whereas bases are bitter.
Thus, we can conclude that the bottle whose label have fallen off contains an acid and the pH of this liquid is MOST likely less than 7.
Answer:
The correct answer is <em><u>absorption</u></em>.
Explanation:
Absorption is the process in which electrons jumps from lower energy level to higher energy level by absorbing energy. The spectrum obtained by transmitting the electromagnetic radiations through the substance is known as absorption spectrum. This spectrum shows dark lines or black bands due to absorption of the specific wavelength.