4/5(F): Chemistry Checkpoint #34

Match each molecular formula with the correct empirical formula

• CH₄

• CH₄

• CH

• C₂H₆

• CH₂

• C₆H₁₂

• CH₃

• C₂H₂

Match each molecular formula with the correct empirical formula

• P₂O₅

• P₄O₁₀

• CH₃

• C₅H₁₀

• CH₂

• C₂H₆

• CH

• C₆H₆

Which two terms represent types of chemical formulas? (Choose two)

• empirical

• structural

• fission

• fusion

• endothermic

Which formula is an empirical formula? (Choose two)

• CH₂

• NH₃

• N₂O₄

• C₃H₆

• P₄O₁₀

Given two formulas representing the same compound:

Formula A CH₃

Formula B C₂H₆

Which statement describes these formulas? (Choose two)

• Formula A is empirical

• Formula B is empirical

• Formula A is molecular

• Formula B is molecular

Which molecular formula is also an empirical formula?

• C₆H₆

• N₂O₅

• N₂H₄

• H₂O₂

Phosphorus combines with oxygen to form an oxide that reacts with water to produce phosphoric acid, which is an important industrial compound used to produce fertilizers. An unbalanced equation for the production of phosphoric acid is shown in the image.

Write the empirical formula of the solid reactant in the equation from the image.

• P₄O₁₀

• P₂O₅

• P₂O₂

• PO₅

Match each formula with the correct description

• arrangement of the atoms in a molecule

• empirical formula

• the simplest whole-number ratio of atoms

• structural formula

• the actual whole-number ratio of atoms

• molecular formula

A structural formula differs from a molecular formula in that a structural formula shows the

• arrangement of atoms

• number of atoms

• 
  ratio of atoms

• 
  types of atoms

Which type of formula represents the simplest whole-number ratio of atoms of the elements in a compound?

• molecular formula

• condensed formula

• empirical formula

• structural formula