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barxatty [35]
3 years ago
12

You are playing a game “will it float?” In this game, you are given a large, square can of tuna. If you know the density of wate

r, what is the minimal information you need to decide if the tuna will float in the water?
Chemistry
1 answer:
saul85 [17]3 years ago
5 0

Answer:

I think it's just density of the tuna

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The solubility of two slightly soluble salts of M^2+ , MA and MZ_2, are the same, 4 x 10^â4 mol/L.
LekaFEV [45]

Answer:

a) MZ₂

b) They have the same concentration

c) 4x10⁻⁴ mol/L

Explanation:

a) The solubility (S) is the concentration of the salt that will be dissociated and form the ions in the solution, the solubility product constant (Kps) is the multiplication of the concentration of the ions elevated at their coefficients. The concentration of the ions depends on the stoichiometry and will be equivalent to S.

The salts solubilization reactions and their Kps values are:

MA(s) ⇄ M⁺²(aq) + A⁻²(aq) Kps = S*S = S²

MZ₂(aq) ⇄ M⁺²(aq) + 2Z⁻(aq) Kps = S*S² = S³

Thus, the Kps of MZ₂ has a larger value.

b) A saturated solution is a solution that has the maximum amount of salt dissolved, so, the concentration dissolved is solubility. As we can notice from the reactions, the concentration of M⁺² is the same for both salts.

c) The equilibrium will be not modified because the salts have the same solubility. So, let's suppose that the volume of each one is 1 L, so the number of moles of the cation in each one is 4x10⁻⁴ mol. The total number of moles is 8x10⁻⁴ mol, and the concentration is:

8x10⁻⁴ mol/2 L = 4x10⁻⁴ mol/L.

7 0
3 years ago
3. After the isotope decays, what is the nucleus called?||
Marat540 [252]

Answer:

Daughter Nucleus

Explanation:

7 0
3 years ago
I need help!! Following measurements
Anna71 [15]
I am so sorry I do not know but I need to answer a question in order to ask one I hope u pass:))
5 0
2 years ago
Although the scientific method is a cyclic process, when investigating a problem for the first time, you must start somewhere. W
Rina8888 [55]

Define the problem

Explanation:

The first step in a scientific investigation is to define the problem at hand. Definition of a scientific problem makes a scientific investigations possible.

  • When preliminary observations are made about a phenomenon. A lot of questions as to why such things occur will arise.
  • From the question, we can state the problem and the likely causes.
  • The first portal in an inquiry is problem definition.
  • This would them lead to the formulation of a hypothesis which contains problem statement and likely causes.
  • The hypothesis leads to the design of an experiment from which investigations using experiments can be done.
  • The data from the experiments are collected and analyzed.

Learn more:

Experiment brainly.com/question/5096428

#learnwithBrainly

7 0
2 years ago
A catalyst decreases the activation energy of a particular exothermic reaction by 56 kJ/mol, to 35 kJ/mol. Assuming that the mec
-Dominant- [34]

Answer:

Activation energy for the uncatalyzed reverse reaction = 103 kJ/mol

Explanation:

Activation energy decreases from = 56 kj/mol to 35 kj/mol

products = 78 KJ lower in energy than reactants

Activation energy for the uncatalyzed reverse reaction = 103 kJ/mol

attached below are the sketches of approximate energy-level for both catalyzed and uncatalyzed reactions

5 0
2 years ago
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