Questions and Answers
The term used to identify anything that occupies space is called?
Matter
Matter with definite weight and volume but no definite shape is called?
a liquid
Which of the following conditions indicates chemical change?
Oxygen and hydrogen combining to form water
Basic substances that cannot be broken down into simpler substances are called?
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Neutrons have which type of electrical charge?
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Atoms that are the same form a(n):
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When two hydrogen atoms combine with one oxygen atom, the result is water, which is called a(n):
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Atoms that are different form a(n):
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Carbon, nitrogen, oxygen, and hydrogen form the basis of?
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What makes up the primary composition of hair?
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Which bond is the backbone of all protein molecules?
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Putting a sodium hydroxide relaxer under a hair dryer:
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When amino acids combine to form the protein of the hair:
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What is the side bond that is of the greatest concern to the salon professional?
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Which of the following statements describes how human hair is formed?
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Study Notes
Matter and Its Properties
- Matter is defined as anything that occupies space.
- Liquids possess definite weight and volume but lack a definite shape.
Chemical Changes and Elements
- A chemical change is indicated by the combination of oxygen and hydrogen to form water.
- Elements are basic substances that cannot be broken down into simpler substances.
Atomic Structure
- Neutrons carry no electrical charge.
- Atoms of the same type form elements.
- Different types of atoms combine to create compounds.
Compounds and Biological Molecules
- Water (H2O) is a compound formed by the combination of two hydrogen atoms and one oxygen atom.
- Carbon, nitrogen, oxygen, and hydrogen are fundamental components of amino acids.
Hair Structure and Composition
- The primary composition of hair is keratin, a protein structure.
- Peptide bonds serve as the backbone for all protein molecules, including hair.
- Excessive heat, such as placing a sodium hydroxide relaxer under a hair dryer, can break critical peptide bonds and compromise the protein structure.
Amino Acids and Hair Formation
- Amino acids combine to form hair protein, resulting in a spiraling configuration.
- Disulfide bonds are the most crucial side bonds for salon professionals, as they significantly affect hair structure.
- Human hair is formed through the bonding of protein chains to each other.
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Description
Test your knowledge of matter with this chemistry quiz. It covers essential concepts like the state of matter, chemical changes, and more. Perfect for students learning about the fundamentals of chemistry.
