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Ionic
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Bonus Chemical
100

Which one is incorrect about Ionic compounds?


  1. They form crystals

  2. They have low melting points

  3. They are hard and brittle

  4. Salt is a household example

2. They have low melting points

100

Which is an example of a covalent compound?

  1. Plastic

  2. Wood

  3. Water

  4. Hydrochloric acid

3. water

100

 Fill in the blank: matter is ___ destroyed or ____ in chemical reactions


  1. Always, burnt

  2. Not, found

  3. Never, created

  4. Always, destroyed

3. never, created

100

 Which is not an example of a real-world chemical change?

  1. An apple rotting

  2. A rusted nail

  3. Shredding a paper

  4. Digesting a steak


3. shredding a paper

200

 How are ionic compounds formed?

  • The loss or gain of an atom matches another; opposites attract

200

A covalent bond forms when the bonded atoms have (the/a) _____ total energy then widely separated atoms

A. same

B.lower

C.higher



b. lower

200

A combustion reaction is a reaction where the substance reacts with what element?

  1. Silver

  2. Hydrogen

  3. Copper

  4. oxygen

4. oxygen

200

 Fill in the blank: a mole ratio is a ratio between the amounts in ____  of any _____ compounds in a chemical reaction.


  1. Elements, acidic

  2. Moles, two

  3. Chemicals, matter

  4. Equations, four



2. moles, two

300

 How do you properly name an ionic compound?

  • Name the cation then the anion and change end of name to ide

300

Which is true about covalent compounds?

  1. Poor conductors

  2. Low melting point

  3. Hard and stiff

  4. CO2 and CH4 are covalent

3. hard and stiff

300

  1. This equation is an example of what chemical reaction: BaCl2 +MgSO4→ BaSO4+MgCl2

A. double replacement

B single replacement

C synthesis

D combustion



a. double replacement

300

  Which is the last step of balancing equations?

  1. Count the number of atoms on each side of the equation to check if balanced

  2. Balance polyatomic ions 

  3. Identify the most complex substance

  1. Count the number of atoms on each side of the equation to check if balanced

300

 What does not happen during a chemical reaction?

    A.color changes

B. always results in fire

C. odor change

D. production of gasses

b. always results in fire

400

Do Non-metals gain or lose electrons?

Metals lose electrons and non-metals gain electrons

400

 If the compound is made of two non metals, what kind of bonding is it?

  • Covalent compounds

400

How can a redox reaction be recognized?

  1. A coefficient of 3

  2. Change in oxidation number of two of the atoms in the reaction

  3. Including the element Cu (copper) in the equation

  4. The number of electrons decreasing by 4

2. Change in oxidation number of two of the atoms in the reaction

400

What is the molecular geometry of carbon dioxide (CO2)

 linear molecule, a linear shape, a 180 degree bond angle, and AX2 geometry

400

 Balance the following equation:__ ZnSO4 + __Li2CO3 =__ ZnCO3 +__ Li2SO4

  1.  8ZnSO4 + Li2CO3 = ZnCO3 + 3Li2SO4

  2.  1ZnSO4 + 1Li2CO3 = 1ZnCO3 +1 Li2SO4

  3.  1ZnSO4 + 2Li2CO3 =2 ZnCO3 +1 Li2SO4

  4. 4 ZnSO4 +4 Li2CO3 = 6ZnCO3 +4 Li2SO4



2. 1ZnSO4 + 1Li2CO3 = 1ZnCO3 +1 Li2SO4

500

 What is the correct balanced equation of:  Al + HCl → AlCl3 + H2

  1. Al + 3HCl → AlCl3 + 2H2

  2. Al + 2HCl → AlCl3 + H2

  3. 2Al +6 HCl →2AlCl3 + 3H2

3. 2Al +6 HCl →2AlCl3 + 3H2

500

 How can a redox reaction be recognized?

  1. A coefficient of 3

  2. Change in oxidation number of two of the atoms in the reaction

  3. Including the element Cu (copper) in the equation

  4. The number of electrons decreasing by 4

2. Change in oxidation number of two of the atoms in the reaction