Module 5

Define

100

compounds made of only two elements.

What are Binary Compounds?

200

An amount of a substance that contains approximately 6.02 x 10^23 particles of the substance. 

What is a mole?

300

A chemical reaction that absorbs energy from its surroundings. 

What is an endothermic reaction? 

400

A chemical reaction that releases energy to its surroundings. 

What is an exothermic reaction? 

500

A covalently bonded group of atoms that has a positive or negative charge and acts as a unit. 

What are polyatomic ions? 

Reactions

100

Name the two parts of a chemical reaction. 

What are reactants and products?

200

The total amount of energy before and after a chemical reaction is the same.  Thus, energy is 

What is conserved? 

300

Hydrochloric acid (HCl) is added to sodium hydroxide.  At the end of the reaction salt (NaCl) is dissolved in water.  Name the products of this chemical reaction. 

What is NaCl and H₂O? 

400

Classify this reaction as either end thermic or exothermic.  

2Cu + O₂ ----> 2CuO + 315 kJ 

What is exothermic? 

500

The number particles in 1 mole of any substance. 

What is 6.02 x 10²³ particles?

Name that compound!

100

Phosphorus (P) forms a binary ionic compound with Sodium (Na).  Name of this compound. 

What is Sodium phosphate? 

200

Magnesium (Mg) and Chlorine (Cl) form a binary ionic compound with a 1:4 ratio of Magnesium ions to Chloride ions.  Name formula for the compound Magnesium tetrachloride. 

What is MgCl₄?

300

The prefix on the cation in  carbon monoxide indicates

What is that it contains 1 oxygen atom? 

Name that reaction!

100

Which is an example of a synthesis reaction. 

a. 4Mg + S ----> Ag₄S

b. 3H₂O -----> H₂O + H₄ 

What is A? 

200

Which of the following is an example of a double replacement reaction. 

a. 2H₂O_{2 ---->} 2H₂O + O₂

b. FeCl_{2 +} Na₂CO_{3 ---->} 2NaCl + FeCO₃

What is b? 

Remember in a double replacement reaction both anions trade places.  

300

Which of the following is an example of a single replacement reaction. 

a.  FeCl_{2 +} Na₂CO_{3 ---->} 2NaCl + FeCO₃

b. Zn + 2HCl ----> ZnCl_{2 +} H₂

What is b? 

400

Which of the following is an example of decomposition. 

a.3H₂O -----> H_{6 +}O₃ 

b.4Mg + S ----> Ag4S

What is A? 

I have no clue!

100

What time did Mrs. Yatsko sit down to grade last night? 

What is 8:34 pm? 

200

The name the my favorite duck. 

Who is Bingo?

300

The number of siblings Mrs. Yatsko has. 

What is 4? 

400

The number dogs are sitting on my couch at 9pm on Wednesday Jan 3, 2024.  

What is three? 

500

The number of vehicles currently in my driveway on Wednesday night. 

What is 8?