Answer: True
Explanation: To be honest, I guessed. But, it looks right to me. If you don't trust it, you should wait for someone else to answer. Sorry! :(
The number of sulfate ions : 2.2 x 10²³
<h3>Further explanation</h3>
Reaction
Al₂(SO₄)₃⇒2Al³⁺+3SO₄²⁻
mol Al₂(SO₄)₃(MW=342,15 g/mol) :
mol of sulfate ions (SO₄²⁻)
1 mol = 6.02 x 10²³ particles (ions, molecules, atoms), so for 0.366 mol :
False, Dietary proteins are first broken down to individual amino acids by various enzymes and hydrochloric acid
present in the gastro-intestinal tract. These amino acids are further
broken down to α-keto acids which can be recycled in the body for
generation of energy, and production of glucose or fat or other amino
acids.
Answer:
Option B. A
Explanation:
From the question given above, the following data were obtained:
C(s) + 2H₂ (g) —> CH₄ (g). ΔH = –74.9 kJ
From the reaction above, we can see that the enthalpy change (ΔH) is negative (i.e –74.9 KJ) which implies that the heat content of the reactants is greater than the heat content of the products. Thus, the reaction is exothermic reaction.
For an exothermic reaction, the energy profile diagram is drawn in such a way that the heat content of reactants is higher than the heat content of products because the enthalpy change
(ΔH) is always negative.
Thus, diagram A (i.e option B) gives the correct answer to the question.
