Reactions in aqueous solutions

Question 1

When does a reaction become an aqueous solution

Answer 1

When the reaction takes place in water, involves/forms ions. (Solvent is water)

Question 2

What are the four main reaction in aqueous solutions?

Answer 2

Precipitation reactions
Acid-base reactions
Redox reactions
A gas forming reaction

Question 3

WATER!!!
What is the bond between OH? Ionic, metallic, covalent…
What is the shape of water?
T/F Water is a polar bear molecule.

Answer 3

Bond between OH is covalent.
Water is V-shaped, bent.
False, water is a polar molecule.

Question 4

In one molecule of water, which side is slightly negatively charged and which side is slightly positively charged?

Answer 4

H O
H
The top right (Oxygen) is slightly negatively charged.
The bottom left (Hydrogen) is slightly positively charged.

Question 5

Definition of the solute and the solvent.

Answer 5

The solute: Substance that dissolves in water, present in the lesser amount.
The solvent: Solute dissolves in it, present in the greater amount.

Question 6

T/F aqueous solutions can conduct electricity.

Answer 6

True

Question 7

What is the definition of an electrolyte?

Answer 7

A solution that conducts electricity through the movement of ions.
Ionic Compounds that freely dissociate into independent ions in aqueous solutions.

Question 8

T/F some molecular compounds dissolve but don’t dissociate into ions.

Answer 8

True, called non-electrolytes, they don’t conduct electricity.

Question 9

What are the three types of electrolytes?

Answer 9

Strong: Completely ionizes, good conductor.
Weak: Not all the molecules will dissociate into ions, bad conductors.
Non: No ions will form, not a conductor.

Question 10

Definition of Dissociation?

Answer 10

General process in which ionic compounds separate into smaller ions, usually in a reversible manner.

Question 11

Definition of Dissolution?

Answer 11

Dissolution (Dissolving) process where ionic crystals break up into ions in water.

Question 12

Definition of hydration?

Answer 12

Process where ions become surrounded by water molecules.

Question 13

What are the products of this Precipitation Reaction

AB+CD –)

Answer 13

AD + CB

Question 14

There are some … compounds that do not dissolve in water. We call these …

Answer 14

Ionic compounds.

Precipitates.

Question 15

To know which ionic compounds dissolves and which don’t, we need to look at the …

Answer 15

Solubility rules.

Question 16

Only compounds in … … form ions. Which of the products below won’t dissociate into its ions?
NaOH (aq) + HCL (aq) –) NaCl (aq) + H2O (l)

Answer 16

Aqueous solutions

H2O

Question 17

What is the purpose of a net Ionic Equation?
Write a net ionic equation for the chemical equation below.
NaOH (aq) + HCL (aq) –) NaCl (aq) + H2O (l)

Answer 17

Shows what products don’t form aqueous solutions.

OH-(aq) + H+(aq) –) H2O(l)

Question 18

In a gas forming reaction what is the general equation

Answer 18

Metal carbonate + Acid –) Salt + Water + Gas

Question 19

What do we call the release of gas bubbles in a solution?

Answer 19

Effervescence