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2 years ago

Based on patterns in the periodic table, which list shows the acids in order from strongest to weakest?

Chemistry

2 answers:

vaieri [72.5K]2 years ago

7 0

Answer:

H2S, PH3, HCl

H, 2, S, PH, 3, , HCl

Explanation:

GenaCL600 [577]2 years ago

5 0

Answer:

Sorry I dont know this question

You can ask me computer related question.

sorry

Explanation:

Sorry

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Consider the reaction:

stich3 [128]

Answer:

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$\begin{array}{rcl}\Delta_{\text{r}}H^{\circ} & = & [1(-1675.7) + 2(0)] - [2(0) - 1(-824.3)]\\& = & -1675.7 + 824.3\\& = & \textbf{-851.4 kJ/mol}\\\end{array}\\\text{The enthalpy change is } \large \boxed{\textbf{-851.4 kJ/mol}}$

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3 years ago

What is the purpose of a catalyst?

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Answer: A. To change the potential energy of the reactants.

Explanation:
Catalysts make such a breaking and rebuilding happen more efficiently. They do this by lowering the activation energy for the chemical reaction. Activation energy is the amount of energy needed to allow the chemical reaction to occur. The catalyst just changes the path to the new chemical partnership.

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