Answer:
mixture
Explanation:
there was leftover components meaning there was something mixed into the liquid
Answer: There are 4 elements which is Potassium (K), Hydrogen (H), Phosphorus (P) and Oxygen (O)
Answer:
The balanced double displacement reaction is as follows.

Explanation:
The given reactant has sodium,chloride and copper sulfate ions.
In the double displacement reaction, two ionic compounds exchange their cations.
Sulphate and chloride ions are cations these are exchanged sodium and copper elements.
Hence, the balanced double exchange reaction is as follows.

Answer:
<h3>The answer is 43.48 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 500 g
volume = 11.5 cm³
We have

We have the final answer as
<h3>43.48 g/cm³</h3>
Hope this helps you
The value of concentration of H₃O⁺ of the polyprotic acid solution 0.140M H₃C₆H₅O₇ is 2.1×10⁻⁴M.
<h3>What is Ka?</h3>
Ka is the acid dissociation constant which shows its value in the equilibrium condition.
Given chemical reaction with ICE table is:
H₃C₆H₅O₇ → C₆H₅O₆⁻ + H₃O⁺
Initial: 0.140 0 0
Change: -x +x +x
Equilibrium: 0.140-x x x
Ka for the acid = (x)(x) / (0.140-x)
For the H₃C₆H₅O₇ acid value of Ka = 3.2 × 10⁻⁷
We can neglect the value of x from the term 0.140-x, as x is vey small as compared to 0.140 so that equation becomes,
3.2 × 10⁻⁷ = x² / 0.140
x = 2.1×10⁻⁴M
Hence the concentration of H₃O⁺ is 2.1×10⁻⁴M.
To know more about Ka, visit the below link:
brainly.com/question/3006391
#SPJ4