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2 years ago

Express your answer as a complete ionic equation including phases. Enter a balanced complete ionic equation for

Chemistry

1 answer:

Paul [167]2 years ago

7 0

A balanced ionic equation shows the specie that is present in the reaction.

<h3>What is a balanced ionic equation?</h3>

A balanced ionic equation shows the specie that is present in the reaction. The ions that undergo change appear in the final ionic equation. Let us now write the ionic equation for each reaction.

In the case of reaction 1;

H^+(aq) + Cl^-(aq) + Li^+(aq) + OH^-(aq) ---->H2O(l) + Li^+(aq) + Cl^-(aq)

Reaction 2;

Ca^2+(aq) + 2Cl^-(aq) + Ba^2+(aq) + S^2-(aq) -----> BaS(s) + Ca^2+(aq) + 2Cl^-(aq)v

Reaction 3;

Na^+(aq) + NO3^-(aq) + H^+(aq) + OH^-(aq) ---->H2O(l) + Na^+(aq) + NO3^-(aq)

Reaction 4;

6Na^+(aq) + 6Cl^-(aq) + 3Zn^2+ + 2PO4^3-(aq) -----> Zn3(PO4)2(s) + 6Na^+(aq) + 6Cl^-(aq)

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lakkis [162]

Corrosion this is corrosion

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3 years ago

The dissolution of ammonium nitrate in water is given by the following equation:

maks197457 [2]

In the energy graph of an endothermic reaction, the reactants would appear at a lower energy state than the products.

<h3>What is an endothermic reaction?</h3>

An endothermic reaction is a reaction in which heat is absirbed from the surroundings in order for the reaction to proceed.

In endothermic reactions, the heat content of the products is higher than the heat content of the reactants.

Therefore, in the energy graph of an endothermic reaction, the reactants would appear at a lower energy state than the products.

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2 years ago

Which of these statements best explains how fossil records provide evidence to the scientific theory of evolution?

Lorico [155]

your answer would be C

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3 years ago

Dilution of a buffer solution with a small amount of water will ________ the ph of the solution.

Daniel [21]

The Dilution of a buffer solution with a small amount of water will raise the PH of the solution. Dilution is the process of "reducing the concentration of a solute in a solution by simply adding more solvent to the solution, such as water." Dilution involves increasing the amount of solvent in a solution without increasing the amount of solute.

When a solvent is added, the concentration of the solute in the solution is diluted. By removing the solvent, concentration raises the solute concentration in the solution. Dilution is the process of lowering a given solute's concentration in its solution.

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2 years ago

A solution is made by dissolving 100. g of cobalt(III)chloride in 250. g of water. to make a solution that has a density of 1.25

Mariulka [41]

Answer:

Option A) (I) 2.42 m (II) 2.16 M

Explanation:

Let's determine some information.

Solute = CoCl₃ (molar mass = 165.29 g/m); mass of 100 g

Solvent = Water, mass of 250 g

Solution mass = mass of CoCl₃ + mass of water

250 g + 100 g = 350 g of solution

If we want to reach molarity (mol/L), let's determine solution volume with density:

Solution density = solution mass / solution volume

1.25 g/mL = 350 g / solution volume

Solution volume = 350 g / 1.25 g/mL = 280 mL

Let's convert the volume to L → 280 mL = 0.280L

Let's convert the mass of solute to moles = 100 g / 165.29 g/m →0.605 mol

Mol/L = 0.605 moles / 0.280 L = 2.16 M

Now let's calculate molalilty (mol/kg of solvet)

We must convert solvent mass to kg → 250g = 0.250 kg

Then, 0.605 moles / 0.250 kg =2.42 m

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4 years ago