Review - 2nd Semester

Second Semester

Review - Find - Recall

Ask Questions when needed!

Multiple Select

Find the compounds that have the same empirical formula

• CO₂

• C₆H₁₂O₆

• CH₂O

• C₂H₂

• C₁₂H₂₂O₁₁

Multiple Select

Click on all of the molecular formulas

• C₆H₁₂O₆

• CO₂

• CH₂O

• C₁₂H₂₂O₁₁

• C₂H₂

Fill in the Blank

Answer the question on the last slide.

Multiple Choice

What ingredient is limiting how many sandwiches you can make?

• bread

• meat

• cheese

Fill in the Blank

What does chemistry call the reactant (ingredient) that is limiting the reaction?

Fill in the Blank

For the balanced equation shown below, if the reaction of 29.8 grams of C₂H₃OCl produces 6.31 grams of H₂O, what is the percent yield?

4C₂H₃OCl + 9O₂ => 8CO₂ + 6H₂O + 2Cl₂

_{Round the percent to the tenths place and use the percent icon}

Multiple Choice

Which one of the following statements about the following reaction is false?

CH₄(g) + 2O₂(g) = CO₂(g) + 2H₂O(g)

• It takes 2 moles of O2 to create 2 moles of H2O

• 2 moles of water produces 1 mole of carbon dioxide

• 1 carbon atom and 4 atoms of hydrogen make up 1 molecule of CH4

pressure = force / area

Fill in the Blank

If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm? If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its volume at a pressure of 2.50 atm?

Put units for credit

Fill in the Blank

5.00 L of a gas is collected at 100. K and then allowed to expand to 20.0 L. What must the new temperature be in order to maintain the same pressure.

Put units for credit!!

Fill in the Blank

A flexible container at an initial volume of 5.120 L contains 8.500 mol of gas. More gas is then added to the container until it reaches a final volume of 18.10 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container. Put units for credit.

Fill in the Blank

What is the pressure exerted by 2.3 mol of a gas with a temperature of 40. °C and a volume of 3.5 L?

The ideal gas constant is R = 0.0821 L*atm/mol*K

Multiple Select

What gives water its unique properties?

• polarity

• hydrogen bonds

• Universal solvent

• density

Multiple Choice

Which picture shows cohesion?

Solubility

Type of Solutions

Multiple Choice

Which solution is full of solute?

• supersaturated solutions

• saturated solutions

• unsaturated solutions

Multiple Choice

Which solution can dissolve more solute?

• saturated solution

• unsaturated solution

• supersaturated solution

Multiple Choice

Which solution has solute sitting on the bottom of the beaker?

• saturated solution

• supersaturated solution

• unsaturated solution

Fill in the Blank

Find out the molarity of a solution made by dissolving 25.0 g of HCl in water to make 150.0 ml of solution?

Use the unit symbol in your answer

Dilution Formula

Fill in the Blank

How much 0.50 M sugar solution will you need to make 250 ml of 0.2 M sugar solution?

Use the unit symbol in your answer

Notes on how to name Binary acids

Notes on how to name Oxyacids

Fill in the Blank

Use the Table of Ions on the last slide to name HClO₄

Fill in the Blank

Use the table of ions to write the chemical formula for hydroselenic acid

Fill in the Blank

Name H3AsO3

You can recognize a BASE by the hydroxide ending

(OH-)

Reminder when writing the chemical formula

Look up the charges and then

DROP and SWITCH the numbers

Fill in the Blank

What is the name of the base containing calcium?

Fill in the Blank

What is the chemical formula for a base containing calcium?

Predicting Products of Neutralization Reactions (aka Acid-Base Reactions)

Multiple Select

What will the products be when perchloric acid, HClO₄ reacts with calcium hydroxide, Ca(OH)₂

• Ca(ClO4)2

• CaClO

• H2O

• HOH4

• Ca4(OH)2

Fill in the Blank

What is the weakest base on the pH scale on the last slide?

Fill in the Blank

What is the strongest acid on the slide labeled - THE pH SCALE?

Calculating pH

Fill in the Blank

Find the pH if the H+ concentration is 0.0001 moles per liter.

Fill in the Blank

Find the molarity of a solution of hydrochloric acid, HCl with a pH of 1.5

Multiple Select

Click on the picture or the icon where the picture should be.

Name the kinds of energy in the picture labeled 2.

• potentional

• elastic

• kinetic

• mechanical

Multiple Select

Click on the picture or the icon where the picture should be.

Name the kinds of energy in the picture labeled 3.

• chemical

• mechanical

• elastic

• kinetic

Heat Transfer

Multiple Select

Click on all the ways heat will be transferred inside the greenhouse.

• the sun's rays will transfer heat to everything inside the greenhouse

• the warm air will transfer heat to everything inside the greenhouse

• the warm ground will transfer heat to the plants

Multiple Choice

What is the primary way heat is being transferred to the marshmallow?

• conduction

• convection

• radiation

Calorimetry - Heat Calculations

Fill in the Blank

A 158.6 g sample of sodium absorbs 30 joules of heat. The specific heat capacity of sodium is 1.23 J/(g·°C).

By how much did the temperature of this sample change, in degrees Celsius?

Multiple Select

Click on the endothermic reactions

• freezing water

• melting ice

• photosynthesis

• camp fire

Multiple Choice

Use the ENDOTHERMIC vs. EXOTHERMIC slide to help answer this question.

Which reaction has the surroundings hotter than the reaction?

• exothermic reaction

• endothermic reaction

Multiple Choice

Use the last slide to answer this question.

What kind of reaction is the first chemical reaction on the Thermochemical Equations slide?

• exothermic reaction

• endothermic reaction

• neither

Fill in the Blank

Use the THERMOCHEMICAL EQUATION slide to answer this question.

How many grams of water are produced if 10000 kilojoules of energy are given off?

Use the unit symbol in your answer

Multiple Choice

Use the last slide to answer this question.

What happens to the mass number of the isotope that is produced during alpha decay?

• decreases by 4

• increases by 4

• decreases by 2

• increases by 2

Fill in the Blank

What is the atomic number of the isotope that is produced from Th-241 during beta decay?

Fill in the Blank

Which type of nuclear process requires the splitting of a nucleus?

Multiple Select

Click on ALL the examples of nuclear fusion processes below.

• sun

• camp fire

• nuclear bombs

• combustion reactions

• photosynthesis

Chemistry NOTES

Bring your notes because you get to use them on the FINAL