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Matter with definite weight, volume and shape is known as:
A solid
What makes up the primary composition of hair?
Keratin
Water freezing and becoming ice is an example of what type of change
Physical
All matter that is now living or was alive at one time, with carbon present, falls within the scientific division of
Organic chemistry
Electrons have which type of electrical charge?
Negative
Atoms has 3 main parts: protons, neutrons and:
Electrons
The term used to identify anything that occupies space and has weight is called:
Matter
Puttin a sodium hydroxide relaxer under a hair dryer
could break the critical peptide bonds and destroy the protein structure
Atoms that are the same form a(n)
Element
Matter with definite weight but indefinite volume and shape is called:
A gas
The bonds found within hair that help organize proteins chains in order to build hair are called
Side bonds
The simplest atomic structure is:
Hydrogen
Which bond is the backbone of all protein molecules?
Peptide
The atomic number of a particular element indicates:
the number of protons in a single atom
Carbon, nitrogen, oxygen and hydrogen form the basis of
Amino acids
Protons have which type of electrical charge?
Positive
When two hydrogen atoms combine with one oxygen atom, the result is a water molecule, which is a(n)
Compound
Basic substances that cannot be broken down into simpler substances are called:
Elements
Amino acids that create proteins are Linked together end to end by:
Peptide bonds
What is created when amino acids join together in chains?
Proteins
When amino acids combine to form the protein of the hair they take on:
A spiraling configuration
What is the side bond that is of greatest concern to the salon professional?
Disulfide bond
How is human hair formed?
Bonding of protein chains to other protein chains
Matter with definite weight and volume but no definite shape is called
A liquid
Which type of electrical charge do neutrons have?
none