Bonding

Oxidation Numbers

Binary Compounds

Chemical Reactions

Types of Reactions

Question: What type of bond is formed between a non-metal and non-metal?

Answer:

Covalent

Question: What is the oxidation number of Indium (In)?

Answer:

3+

Question: What is the binary compound that will form if Lithium (Li) reacts with Sulfur (S)?

Answer:

Li₂S

Question: What are the products in the following reaction:

HI + LiOH  àLiI + H₂O

Answer:

LiI and H₂O

Question: What type of reaction is the following?

Na + Cl  à  NaCl

Answer:

Synthesis Reaction

Question: What type of bond exists between Iron (Fe) and Iodine (I)?

Answer:

Ionic Bond

Question: What is the oxidation number of Krypton (Kr)?

Answer:

0

Question: What is the binary compound that will form if Calcium (Ca) reacts with Neon (Ne)?

Answer:

No binary compound

Question: What mass of Se is needed to completely dissolve in the reaction below?

2Fr + Se  à Fr₂Se

15g     __         37g

Answer:

22g

Question: What type of reaction is the following?

2H₂O à 2H₂ + O₂

Answer:

Decomposition Reaction

Question: Name an element that will not react with calcium (Ca)?

Answer:

Noble gases (He, Ne, Ar, Kr, Xe, and Rn)

Question: What is the oxidation number of the halogen family?

Answer:

1-

Question: What is the binary compound that will form if Magnesium (Mg) reacts with Bismuth (Bi)?

Answer:

Mg₃Bi₂

Question: How many Hydrogen atoms are there in 20C₆H₁₂O₆?

Answer:

240 Hydrogen atoms

Question: What type of reaction is the following:

BaBr₂ + 2At  à  BaAt₂ + Br₂

Answer:

 Single Displacement Reaction

Question: What phrase is used to describe the electrons in an ionic bond?

Answer:

“transfer of electrons”

Question: What is the oxidation number of the transition metal in the compound Fe₂O₃?

Answer:

3+

Question: What type of covalent bond will form if Phosphorus (P) bonds with Phosphorous (P)? (Single, Double, or Triple)

Answer:

Triple

Question: How many molecules of water are there in 15H₂O?

Answer:

15

Question: What type of reaction can be described as one friend meets another friend and they hang out all day at the park?

Answer:

Synthesis Reaction

Question: What is the definition of an ion?

Answer:

Element with a charge because it has gained or lost an electron.

Question: How many electrons must Antimony (Sb) gain to have a full outer shell?

Answer:

3

Question: What is the chemical formula if 2 Nitrogen molecules bond together?

Answer:

N₂

Question: What is the total number of Calcium (Ca) atoms in the reaction below?

2Ca₃N₂ + 12K  à 4K₃N  + 6Ca

Answer:

12 Calcium atoms

Question: Is the following reaction balanced? If not, correctly balance it.

2Mg₃P₂  à  Mg  +  P

Answer:

Not Balanced

2Mg₃P₂  à  6Mg  +  4P