Answer:
Answers are given below.
Explanation:
Balanced reaction:
So, 3 molecules of react completely with 1 molecule of and produce 2 molecules of .
Hence, 6 molecules of react completely with or 2 molecules of and produce or 4 molecules of
(A) number of molecules = 4
(B) number of molecules = (6-2) =4
(C) number of molecules = (6-6) = 0
Equation (D) represents best this reaction.
It is called as phosphoric acid
Answer:
116 °C
Explanation:
The given parameters of the Substance Q are;
The boiling point of Q = 445°
The substance <em>Q</em> is a solid at room temperature
Given that <em>Q</em> has a single fixed boiling point, <em>Q</em>, is suspected to be a pure substance, and it will therefore also have a fixed single melting point above room temperature;
Therefore, the best option is option C. 116 °C, which is above a single temperature value above 116 °C