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zheka24 [161]
3 years ago
15

Help would be much appreciated, I'm being timed I'll mark brainliest !!

Chemistry
1 answer:
Vitek1552 [10]3 years ago
7 0
Group 17

Please brainliesttt
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Given similar concentrations, the stronger acid corresponds to the lower pH. Comment on the relative strengths of the acids H3PO
andreyandreev [35.5K]

Answer:

H3PO4 is stronger than H2PO4- because

H3PO4 dissociation constant is 6.9×10^-3

H2PO4^- dissociation constant is 6.2×10^-8

7 0
2 years ago
What is 1520 9600 mg to kilograms
Ostrovityanka [42]

I Think that the answer is 15.2096 Kilograms, but I might be wrong.

5 0
3 years ago
Consider the following reaction at equilibrium. What effect will decreasing the temperature have on the system? DH=+890kJCO2(g)+
AlladinOne [14]

Answer:

Option B. The reaction will shift to the left in the direction of the reactants.

Explanation:

The equation for the reaction is given below:

CO₂ + 2H₂O <=> CH₄ + O₂

Enthalpy change (ΔH) = +890 KJ

The reaction illustrated by the equation is endothermic reaction since the enthalpy change (ΔH) is positive.

Increasing the temperature of an endothermic reaction will shift the equilibrium position to the right and decrease the temperature will shift the equilibrium position to the left.

Therefore, decreasing the temperature of the system illustrated by the equation above, will shift the reaction to the left in the direction of the reactants.

Thus, option B gives the right answer to the question.

3 0
3 years ago
C. Why do chemists routinely test existing chemicals?
frozen [14]

Answer :

The chemists such as analytical chemists determine the structure, composition, and nature of substances by examining and identifying their various elements or compounds. These chemists are crucial to the pharmaceutical industry because pharmaceutical companies need to know the identity of compounds that they hope to turn into drugs.

8 0
3 years ago
All reversible reactions will reach chemical equilibrium
Fudgin [204]
True, all reversible reactions will reach chemical equilibrium. 
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