Chemical Reactions & Electron Config

What are the five main types of chemical reactions?

• Synthesis, decomposition, single displacement, double displacement, and combustion

• Photosynthesis, respiration, fermentation, transpiration, and evaporation

• Oxidation, reduction, neutralization, precipitation, and ionization

• Addition, subtraction, multiplication, division, and exponentiation

What is the electron configuration for oxygen?

• 1s2 2s4 2p2

• 1s2 2s3 2p3

• 1s2 2s2 2p4

• 1s2 2s1 2p5

What is the formula for sodium chloride?

• CO2

• NaCl

• H2O

• C6H12O6

In a double displacement reaction, what happens to the ions?

• Ions exchange partners between two compounds.

• Ions combine to form a single compound.

• Ions remain unchanged.

• Ions are destroyed.

What is the electron configuration for magnesium?

• 1s2 2s2 2p5 3s2

• 1s2 2s2 2p6 4s2

• 1s2 2s2 2p6 3s2

• 1s2 2s2 2p6 3s1

What is the formula for calcium carbonate?

• CaO

• CaCO2

• CaCO3

• CaCl

What type of reaction is A + B -> AB?

• Single displacement reaction

• Decomposition reaction

• Acid-base reaction

• Synthesis or combination reaction

What is the electron configuration for nitrogen?

• 1s2 2s3 2p1

• 1s2 2s1 2p4

• 1s2 2s2 2p3

• 1s2 2s3 2p2

What is the formula for potassium iodide?

• KIO

• KI

• K2I

• IK

In a combustion reaction, what are the products typically?

• hydrogen and helium

• carbon dioxide and water vapor

• methane and sulfur dioxide

• oxygen and nitrogen