The oxidation number of P in Mg3P2 is 3. When writing ionic compounds, you swap the oxidation numbers and add them as the subscript.
Acid-base conjugate pair forms when the element donates a proton and another species acquires it.
and
are the base-conjugate acid pair.
<h3>What is base-conjugate acid pair?</h3>
Acids are the species or element and compounds that donates proton or hydrogen ions to form a conjugate base.
Bases are the elements or compounds that acquires protons or hydrogen ions and form a conjugate acid pair.
Conjugate acids and bases are the species or the products formed when the protons or hydrogen ions are increased or decreased in their chemical structures.
The reaction can be shown as,
![\rm H_{2}PO_{4}^{-} + H_{2}O \leftrightarrows H_{3}O^{+} + HPO_{4}^{2-}](https://tex.z-dn.net/?f=%5Crm%20H_%7B2%7DPO_%7B4%7D%5E%7B-%7D%20%2B%20H_%7B2%7DO%20%5Cleftrightarrows%20H_%7B3%7DO%5E%7B%2B%7D%20%2B%20HPO_%7B4%7D%5E%7B2-%7D)
From the reaction, it can be said that the water molecule acquired the hydrogen or the proton ions and the hydronium ion produced as a result is the conjugate acid of the water base.
Therefore,
and
are the base-conjugate acid pair.
Learn more about conjugate acid and base here:
brainly.com/question/4379868
Answer:
3 moles H₂
Explanation:
The reaction equation Zn + 2HCl => ZnCl₂ + H₂ shows a 1:1 mole ratio between Zn and molecular hydrogen (H₁). Therefore, the moles of Zn consumed in the reaction is then equal to the moles of H₂ produced. In this case using 3 moles Zn => 3 moles H₂ will be produced.
Answer:
A beta particle
Explanation:
The radioactive particle must undergo a beta decay to have the mass number unchanged but the atomic number to have decreased by one.
This type of beta decay results in the emission of a positron which is a type of beta particle. It resembles an electron but it has a positive charge of 1.
Scientific knowledge is constantly being refined and changed as scientists perform studies using the scientific method. New discoveries such as the recent discovoery of water on Mars, cause scientists to re-evaluate their previously held theories.