Secondary 2 Jeopardy Review

Density

100

What is the formula for density?

D = M/V

200

What is the mass of 25 mL of copper if the density of copper is 8.96 g/mL?

224 grams

300

What is the volume of 25 g of seawater (Density - 1.03 g/mL)?

24.27 mL

400

What is the volume of 56 grams of Iron (density 7.87 g/cm3)

7.11 cm3

500

What is the densest element, with a density of 22.59 g/cm3? 

Hint: It is a transition metal in period 6. 

Osmium

Mixtures

100

In a salt water solution, what is the solvent?

Water

200

What type of mixture is sand and water?

Suspension

300

What type of mixture is oil and water?

An emulsion

400

What are 3 characteristics of a colloid?

1. It will not settle out into layers. 

2. It will appear homogeneous. 

3. It will demonstrate the Tyndall Effect. 

4. It is technically heterogeneous. 

500

Describe how you could separate a salt water solution into salt and water. (Note - This is only covered in January and not on your exam!)

Distillation

Physical and Chemical Changes

100

Which type of physical change occurs when you rip a piece of paper?

- Reversible Deformation

- Irreversible Deformation

- Change in State

- Dissolution of a solute

Irreversible Deformation

200

What are 3 signs that a chemical change occurred?

1. Permanent change in color 2. Significant change in temperature 3. Formation of a precipitate 4. Release of a gas 5. Emission of light

300

2Na + Cl₂ ----> 2NaCl

How many total molecules are on each side of the equation? 

Is this an example of a synthesis or decomposition reaction? 

There are 3 molecules on the reactants side, and 2 on the products, it is an example of a synthesis. 

400

6CO₂ + 6H₂O ---> C₆H₁₂O₆ + 6O₂

This is the chemical equation is best described as a ___________.

Synthesis

500

During the demo, we combined aqueous lead nitrate with aqueous potassium iodide to form potassium nitrate (aq) and lead iodide (solid). 

This was an example of which sign of a chemical reaction?

Precipitation

Periodic Table of Elements

100

An atom of which element has more mass, helium or lithium?

Lithium. 

200

Draw a Rutherford Bohr diagram for helium

Please see the board

300

Which family is located in the 18th group, and are known for being very stable elements with a complete set of valence electrons?

Noble Gases

400

Boron has an atomic number of 5, and is in group 13, and period 2. 

-How many electron shells does Boron have?

-How many valence electrons does Boron have?

A. 2

B. 3

500

How many neutrons does a standard atom of chlorine have?

18

Random

100

What room number is the synagogue?

201

200

What is the densest known element?

A. Helium

B. Neon

C. Argon

D. Osmium

D. Osmium

300

NFL players must bench press 225 lbs on a standard barbell at the NFL combine. How many 45 lb plates are placed on the barbell?

4

400

Name 3 of the 6 essential nutrients. 

Any combination of carbohydrates, protein, fat, vitamins, minerals, and water. 

500

What is the largest living reptile on Earth?

Saltwater Crocodile