A solution with a pH of 6.0 isa. acidic.
b. neutral.
c. weakly basic.
d. strongly basic.

Answers

Answer 1

Answer:

A solution with a pH of 6.0 is acidic. Therefore, the correct option is option A among all the given options.

pH, often known as acidity in chemistry, has historically stood for "potential of hydrogen" (as well as "power of hydrogen"). It refers to a scale used to describe how basic or how acidic an aqueous solution is. When compared to basic or alkaline solutions, acidic solutions—those with greater hydrogen (H⁺) ion concentrations—are measured with lower pH values. Acidic solutions have a pH of 6. When the pH of a solution is below 7, it is said to be acidic, and when it is above 7, it is said to be basic (a neutral solution includes a pH of 7). A solution with a pH of 6.0 is acidic.

Therefore, the correct option is option A.

To know more about pH, here:

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Answer 2

Answer: A solution with a pH of 6 is acidic. a solution is considered acidic when the pH<7 while a solution is considered basic when the pH>7 (a neutral solution has a pH=7).

I hope this helps. Let me know if anything is unclear.

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In an exothermic reaction, an increase in temperature favors the formation of products. a. True
b. False?

Answers

False, in an exothermic reaction, an increase in temperature does not favor the formation of products. Instead, it favors the backward reaction. An exothermic reaction is a reaction where energy is transferred from the system out to the environment.

Answer:

The correct answer is option b.

Explanation:

Exothermic reactions are defined as the reactions in which energy of reactants is more than the energy of the products. In these reactions, energy is released by the system. The total enthalpy of the reaction $(\Delta H)$ comes out to be negative.

In these reaction , products are favored when temperature is kept low. And when we allow these reaction to take place at higher temperature they favor reactant side.

Endothermic reactions are defined as the reactions in which energy of products is more than the energy of the reactants. In these reactions, energy is absorbed by the system. The total enthalpy of the reaction $(\Delta H)$ comes out to be positive.

What happens to the pressure and the molecules inside a football that is being pumped up?

Answers

The pressure increase, and the molecules collide with the football's inners surface

When determining an element identity what is the most important Subatomic part to look at?

Answers

Answer: Protons

Explanation: When determining an element identity the most important Subatomic part to look at is the number of protons in the nucleus determines the identity of an atom .

The liquid substances mercury (density = 13.6 g/mL), water (1.00 g/mL), and cyclohexane (0.778 g/mL) do not form a solution when mixed; instead, they separate in distinct layers. List how the liquids would position themselves in a test tube. Rank the liquids from the top of the tube to the bottom.

Answers

Answer:

Cyclohexane, water, mercury.

Explanation:

One result of Archimedes' principle is that, in a container, the substance with the highest density will be in the bottom of the container and the substance with the lowest density, will be in the top of the container.

In the test tube with mercury, water and cyclohexane. In the top you will have cyclohexane (Least dense), in the middle will be the water and in the bottom will be mercury.

From the top to the bottom:

Cyclohexane, water, mercury.

An aqueous solution was prepared containing 1.0mol of AgNO3 and 1.0mol of FeSO4 in 1.00 dm^3. of water. When equilibrium was established, there was 0.44mol of Ag+(aq) in the mixture. Ag + (aq) + Fe2 + (aq) <==> Ag(s) + Fe3+ (aq) . What is the numerical value of Kc? . A 0.35 B 0.62 C 1.62 D 2.89

Answers

Kc = [Fe3+]/ ([Ag+] [Fe2+])
Initial concentrations [Ag+]= [Fe2+]= 1.0 mol/ dm^3 [Fe3+] =0.0 mol/dm^3
change: Ag+: (1.0 - .44) mol/dm^3 = 0.56 mol/ dm^3 = change of Fe2+. Change of Fe3+ is 0.56 mol/dm^3.
Equilibrium concentrations [Ag+] = [Fe2+] = 0.44 mol/dm^3 [Fe3+] = 0.56 mol/dm^3

Kc = 0.56/0.44^2 dm^3/mol = 2.89 dm^3 /mol

Final answer:

The equilibrium constant Kc for the given reaction is calculated as [Fe3+]/[Ag+][ Fe2+] = 1.76, which is not among the provided answer choices.

Explanation:

To calculate the equilibrium constant, Kc, for the reaction Ag + (aq) + Fe2+ (aq) <==> Ag(s) + Fe3+ (aq), you need to know the concentrations of the ions at equilibrium. According to the question, the concentration of Ag+ is 0.44 mol/1.00 dm^3. Because AgNO3 completely dissociates into Ag+ and NO3- ions, the initial concentration of Fe2+ would also be 1.00 mol/dm^3. Given that the reaction has gone to completion, the concentration of Fe2+ at equilibrium would be 0.56 mol/dm^3 (1.00 - 0.44).

Furthermore, the reaction creates an equivalent amount of Fe3+, so its concentration at equilibrium would also be 0.44 mol/dm^3. Therefore, the equilibrium constant, Kc, is calculated as [Fe3+]/[Ag+][ Fe2+] = (0.44)/(0.44 * 0.56) = 1.76. Looking at the answer choices given, none of them matches with the calculated value. So, the correct value might be an option not mentioned here.