Review Midterm Fall 2023

Front

What is an example of an element in modern chemistry?

Back

Iron is an example of an element.

Front

What type of emulsion do starches create by physically interfering with water and fat molecules?

Back

Starches create a permanent emulsion.

Front

What is the continuous phase in a colloid?

Back

The substance in which particles are distributed in a colloid is called the continuous phase.

Front

How can the baking process be summarized?

Back

The baking process is best summarized as hot air stretching a protein framework.

Front

Do the pH of a solution and the strength of an acid describe different properties of the same solution?

Back

True, they describe different properties.

Front

What is the definition of a colloid?

Back

A colloid is a mixture where tiny particles are dispersed throughout a substance.

Front

What is the role of starch in food emulsions?

Back

Starch acts as a stabilizer, creating a permanent emulsion by interacting with water and fat.

Front

What happens to proteins when heat is applied during baking?

Back

Heat coagulates protein foams, giving structure to baked goods.

Front

What is the significance of pH in chemistry?

Back

pH measures the acidity or basicity of a solution, influencing chemical reactions.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution.