Unit 4 & 5

What is a solution ?

Answer explanation

What are the factors that affect solubility ?

• Stirring

• Temperature

• PH

• Dilution

Answer explanation

Pressure - Only affects solubility of gas

Temperature

PH

These all affect the solubility of a solution gas , liquid or alloy/

Substances that can be dissolved are called a _______.

Answer explanation

Solute- what is dissolved in a solvent

Water is the "Universal Solvent " because its ______ allows for it to dissolve more solutes than any other liquid

Match the following with the correct beaker

• Unsaturated

• 
• Supersaturated

• 
• Saturated

• 

Answer explanation

Saturated – a solution that has dissolved all the solute it can until small amount of undissolved solute at the bottom of solution 

Supersaturated – a solution that contains a large amount of undissolved solute which will cause the solution to crystallize 

Unsaturated- a solution that has dissolved all solute thoroughly leaving nothing behind 

​ (a)   ​ solutions have more ​ (b)   than ​ (c)   while ​ (d)   solutions have more '​ (e)   than solvent

• Diluted
• solvent
• Concentrate
• solute,
• solute

Which is a way to increase the rate of dissolving ?

• add more solute

• add more solvent

• stir

• none of the above

Answer explanation

Stirring

increase Temperature

Crushing solute to smaller size

Match parts of the equation to the correct term

Ag + O2 <------ AgO2

• direction of reaction

• <------

• Reactant

• AgO2

• Product

• Ag + O2

Answer explanation

The arrow tells which way to start an equation

Reactants are what are combined to make a product

Products are end results of chemical reactions

what type of chemical reaction is H2O----> H2+ O

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

Answer explanation

Synthesis - 2 elements come together

Decomposition - Elements break apart

Single replacement - 1 element is replaced to bond to another

Double Replacement- all elements switch partners.

AgNO3 + MgCl2------> AgCL + Mg(NO3)2 ,what would the coefficient for Mg(NO3)2