Fall 2024 CMS Final Review

Front

What is the definition of steady speed?

Back

Steady speed refers to a constant speed where an object covers equal distances in equal intervals of time.

Front

What does it mean for a substance to be neutral?

Back

A neutral substance has a pH of 7, meaning it is neither acidic nor basic, like pure water.

Front

How many sodium atoms are present in the compound 6NaCl?

Back

There are 6 sodium (Na) atoms in 6NaCl.

Front

What does corrosive mean in chemistry?

Back

Corrosive refers to a substance that can easily wear away or damage materials, often through chemical reactions.

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a substance is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is a strong base?

Back

A strong base is a substance that completely dissociates in water to produce hydroxide ions (OH-), resulting in a high pH.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a chemical reaction and has a pH less than 7.

Front

What is the difference between a strong acid and a weak acid?

Back

A strong acid completely ionizes in solution, while a weak acid only partially ionizes.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the significance of pH in everyday substances?

Back

pH indicates whether a substance is acidic, basic, or neutral, affecting its reactivity and safety.