Podcast
Questions and Answers
Which of the following pH levels indicates a solution is classified as an acid?
Which of the following pH levels indicates a solution is classified as an acid?
- pH above 7.0
- pH exactly 8.0
- pH below 7.0 (correct)
- pH equal to 7.0
What are compound molecules composed of?
What are compound molecules composed of?
- Single atoms bonded chemically
- Multiple molecules combined physically
- Two or more atoms of the same element bonded together
- Two or more atoms of different elements chemically united (correct)
What type of shampoo is specifically designed for oily hair and scalps?
What type of shampoo is specifically designed for oily hair and scalps?
- Color-enhancing shampoos
- Balancing shampoos (correct)
- Clarifying shampoos
- Volumizing shampoos
Which term refers to the smallest particle of an element that retains the chemical identity of that element?
Which term refers to the smallest particle of an element that retains the chemical identity of that element?
Which of the following defines chemical change?
Which of the following defines chemical change?
Chemical properties refer to which of the following characteristics?
Chemical properties refer to which of the following characteristics?
What is chemistry the study of?
What is chemistry the study of?
What do clarifying shampoos contain that helps remove metals from the hair?
What do clarifying shampoos contain that helps remove metals from the hair?
What is the main function of color-enhancing shampoos?
What is the main function of color-enhancing shampoos?
Which one of the following statements is true about chemical compounds?
Which one of the following statements is true about chemical compounds?
What is the pH range of an alkali solution?
What is the pH range of an alkali solution?
What happens when a base is applied to red litmus paper?
What happens when a base is applied to red litmus paper?
What are the three components of a base compound?
What are the three components of a base compound?
What is another term for a base?
What is another term for a base?
What is the characteristic of an alkali solution?
What is the characteristic of an alkali solution?
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Study Notes
Chemistry Basics
- Chemistry is the science that deals with the composition, structure, and properties of matter
- Atoms are the basic building blocks of all matter and are the smallest particle of an element that has the chemical identity of the element
Chemical Compounds and Properties
- Chemical compounds are combinations of two or more atoms of different elements united chemically with fixed chemical composition, definite proportions, and distinct properties
- Compound molecules are two or more atoms of different elements united chemically with fixed chemical composition, definite proportions, and distinct properties
- Chemical properties are characteristics that can only be determined with a chemical reaction
- Chemical change is a change in the chemical composition of a substance by which new substances are formed
pH and Solutions
- Acids are solutions that have a pH below 7.0
- Alkalis (also known as bases) are solutions that have a pH above 7.0
Shampoos
- Balancing shampoos are designed for oily hair and scalps, washing away excess oiliness while keeping the hair from drying out
- Clarifying shampoos contain an active chelating agent that binds to and helps remove metals from the hair, providing thorough cleansing and cutting through product buildup
- Color-enhancing shampoos are created by combining surfactant bases with basic dyes
Chemistry Basics
- Chemistry is the science that deals with the composition, structure, and properties of matter.
- Atoms are the basic building blocks of all matter, and are the smallest particle of an element that has the chemical identity of the element.
Acids and Bases
- Acids are solutions with a pH below 7.0.
- Alkalis (also known as bases) are solutions with a pH above 7.0.
- Bases are compounds of hydrogen, a metal, and oxygen, and will turn red litmus paper blue.
Chemical Compounds and Properties
- Chemical compounds are combinations of two or more atoms of different elements united chemically with fixed chemical composition, definite proportions, and distinct properties.
- Chemical properties are characteristics that can only be determined with a chemical reaction.
- Compound molecules are two or more atoms of different elements united chemically with fixed chemical composition, definite proportions, and distinct properties.
Shampoos
- Balancing shampoos are designed for oily hair and scalps, washing away excess oiliness while keeping the hair from drying out.
- Clarifying shampoos are formulated with an active chelating agent that binds to and helps remove metals from the hair, providing thorough cleansing and cutting through product buildup.
- Color-enhancing shampoos are created by combining surfactant bases with basic dyes.
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