Use the Following Information to Answer the Question

question 22

Multiple Choice

Use the following information to answer the question. Which treatment is most effective at treating carpet stains: vinegar, ammonia, or hydrogen peroxide? In a study, researchers randomly assigned 55 carpet samples with identical stains to one of three groups. Depending on which group they were assigned to, each carpet sample received a home remedy of water mixed with vinegar, ammonia, or hydrogen peroxide. Afterwards, each carpet sample was examined and any remaining stain was measured. Researchers found that a vinegar and water mixture produced better results than both ammonia and hydrogen peroxide.
-Choose the statement that restates the conclusion of the study in terms of cause- and- effect conclusion.

• A)A water and ammonia mixture effectively treats carpet stains compared to ammonia and hydrogen peroxide.
• B)People who use water and vinegar to treat carpet stains will have fewer visible carpet stains.
• C)A water and vinegar mixture effectively treats carpet stains compared to ammonia and hydrogen peroxide.

---

Definitions:

Atomic Orbitals

Mathematical functions that describe the wave-like behavior of an electron in an atom, these orbitals determine the distribution of electrons around an atom’s nucleus.

Hybrid Atomic Orbitals

Orbitals formed by the combination of standard atomic orbitals within an atom, explaining the bonding and geometry of molecules more accurately than unhybridized orbitals.

C-O Bond

A chemical bond between carbon and oxygen atoms, common in various organic and inorganic molecules and materials.

IUPAC Name

A structured technique for the naming of chemical compounds suggested by the International Union of Pure and Applied Chemistry.