Answer:
All of the above
Explanation:
<em>Give the characteristics of a strong acid.</em>
- <em>Has a polar bond.</em> YES. A big difference in the electronegativity between the heteroatom and the hydrogen atom is associated with the strength of an acid.
- <em>Has a weaker bond to hydrogen.</em> YES. A weaker bond to hydrogen makes it easier for it to break.
- <em>Has equilibrium far to the right.</em> YES. The equilibrium of a strong acid is very shifted towards the products.
- <em>Ionizes completely in aqueous solutions.</em> YES. A strong acid exists mostly in the ionic form in aqueous solution.
Answer:
0.333 M
Explanation:
Step 1: Write the balanced equation
2 HCl(aq) + Mg(OH)₂(aq) = MgCl₂(aq) + 2 H₂O(l)
Step 2: Calculate the reacting moles of Mg(OH)₂
25.00 mL of a 0.200 M magnesium hydroxide react. The reacting moles of Mg(OH)₂ are:
Step 3: Calculate the reacting moles of HCl
The molar ratio of HCl(aq) to Mg(OH)₂ is 2:1. The reacting moles of HCl are:
Step 4: Calculate the molarity of HCl
Based on the mass given, the value of P in the N - P - K designation is 32.
<h3>What is percentage mass composition of an element?</h3>
The percentage mass composition of an element is the mass percent ofbthe element in the the total mass of the compound.
Since the fertilizer contains 1.2 g of phosphorus as P2O5.
Molar mass of P2O5 = 142 g
mass percent of P in P2O5 = 2 × 31/142 = 43.6%
mass of P2O5 in 8.6 g fertilizer = 100/43.6 × 1.2 = 2.75 g
Mass percent of P2O5 = 2.75/8.6 × 100% = 32.0%
Therefore, the value of P in the N - P - K designation is 32.
Learn more about percentage mass at: brainly.com/question/26150306