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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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2. Would you measure a pencil in meters? A hallway in millimeters? Discuss

Eduardwww [97]

Answer:

Measuring a pencil in meters would be very difficult, as a single meter is much longer than one pencil. Also, measuring a hallway in millimeters would be very difficult considering how small millimeters are in comparison to a hallway. However, if you switch these two then they would work very well.

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3 years ago

List the following bond types in order of increasing strength: non-polar covalent bonds, ionic bonds, hydrogen bonds, polar cova

ss7ja [257]

Answer: Option (B) is the correct answer.

Explanation:

An ionic bond is formed by the sharing of electrons between two chemically combining atoms.

In an ionic bond, there occurs attraction between oppositely charged ions due to which there occurs strong forces of attraction between them. Therefore, ionic bonds are the strongest bonds.

A polar covalent bond is formed due to unequal sharing of electrons between the combining atoms.

For example, $H_{2}O$ is a polar covalent compound. Partial opposite charges tend to develop on the atoms of a polar covalent compound.

A non-polar covalent bond is formed due to equal sharing of electrons between the combining atoms.

For example, $Cl_{2}$ is a non-polar covalent molecule. No partial charges will be there on the atoms of a non-polar covalent molecule.

A hydrogen bond is defined as the bond formed between a hydrogen atom and an electronegative atom.

For example, in HCl compound there occurs hydrogen bonding.

In this type of bond, dipole-dipole attractive interactions tend to take place. And, strength of hydrogen bonds is very weak.

Thus, we can conclude that given bond types are arranged in order of increasing strength as follows.

Hydrogen bonds < non-polar covalent bonds < polar covalent bonds < ionic bonds

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3 years ago

A chemist measures the energy change ?H during the following reaction: 2HgO (s) ?2Hg (l) +O2 (g) =?H182.kJ Use the information t

Leni [432]

Answer:

The reaction is endothermic.

Yes, absorbed

3.06x10¹kJ are absorbed

Explanation:

In the reaction:

2HgO(s) → 2Hg(l) + O₂(g) ΔH = 182kJ

As ΔH >0,

<em>The reaction is endothermic</em>

<em />

As the reaction is endothermic, when the reaction occurs,

<em>the heat is absorbed.</em>

Now, based on the equation, when 2 moles of HgO (Molar mass: 216.59g/mol), 182kJ are absorbed.

72.8g are:

72.8g * (1mol / 216.59g) = 0.3361 moles HgO.

that absorb:

0.3361 moles HgO * (182kJ / 2 moles) =

<h3>3.06x10¹kJ are absorbed</h3>

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4 years ago

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3 years ago