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drek231 [11]
3 years ago
13

In its aqueous solution, 32% of a substance dissociates to release hydroxide ions. Which of the following is true for the substa

nce? It is a weak acid. It is a weak base. It is a strong acid. It is a strong base.
Chemistry
1 answer:
Scrat [10]3 years ago
5 0

The solution is a weak base. a weak base is that which dissociates partially in aqueous solution to give hydroxide ions as the only negatively charged ions. In the provided information, only 32 %of the substance dissociates thus it is a partial dissociation. Most of the energy is used to break bonds thus the remaining energy is not enough to cause complete dissociation.

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When CaCl2 and Zn react together, zinc (Zn) can replace chlorine (Cl) in the compound because zinc is higher on the periodic tab
Phantasy [73]

Answer:

The answer to your question is: false

Explanation:

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3 0
3 years ago
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The elementary reaction 2H2O(g)↽−−⇀2H2(g)+O2(g) 2H2O(g)↽−−⇀2H2(g)+O2(g) proceeds at a certain temperature until the partial pres
Dima020 [189]

Answer:

6.25\times 10^{-6} is the value of the equilibrium constant at this temperature.

Explanation:

Equilibrium constant in terms of partial pressure is defined as the ratio of partial pressures of products to the partial pressures  of reactants each raised to the power equal to their stoichiometric ratios. It is expressed as K_{p}

2H_2O(g)\rightleftharpoons 2H_2(g)+O_2(g)

Partial pressures at equilibrium:

p^o_{H_2O}=0.070 atm

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The equilibrium constant in terms of pressures is given as:

K_p=\frac{(p^o_{H_2})^2\times (p^o_{O_2})}{(p^o_{H_2O})62}

K_p=\frac{(0.0035 atm)^2\times 0.0025 atm}{(0.070 atm)^2}=6.25\times 10^{-6}

6.25\times 10^{-6} is the value of the equilibrium constant at this temperature.

5 0
3 years ago
Can someone help me please I will mark you brainliest
lara [203]

1: a, 2:a, 3:a, 4:c, 5:d, 6:d, 7:c;

4 0
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sleet_krkn [62]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the Lens and Ray Optics.

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answer is C.) Concave lens

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What is an air mass? Where on Earth might you find a hot and dry air mass?
igor_vitrenko [27]
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