Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Esthetics > Basics of Chemistry > Flashcards

Basics of Chemistry Flashcards

1
Q

Science that deals with composition, structure and properties of matter and how they change under different conditions is the definition of:

A

Chemistry.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The two branches of chemistry are:

A

Organic and Inorganic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Organic chemistry studies substances that contain:

A

Carbon.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Metals, minerals, pure water and clean air do not burn and are considered:

A

Inorganic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Any substance that occupies space is the definition of:

A

Matter.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is an element?

A

The simplest form of chemical matter.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Particles from which all matter is composed is the definition of:

A

An atom.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Describe a molecule:

A

Formed by joining two or more atoms chemically.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe an elemental molecule:

A

Containing two or more atoms of the same element that are united chemically.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe a compound molecule:

A

Two or more atoms of different elements that are united chemically.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Characteristics that can be determined without a chemical reaction and that do not cause a chemical change in the identity of the substance is known as:

A

Physical properties.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Characteristics that can be determined only with a chemical reaction and cause a chemical change in the identity of the substance.

A

Chemical properties.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A change in the form or physical properties of a substance without the formation of a new substance is called:

A

Physical change.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Change in the chemical composition of a substance is known as:

A

Chemical change.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A colorless, odorless, tasteless GAS and is the lightest element known. What is it?

A

Hydrogen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The most abundant element found on earth and is an odorless, and tasteless GAS.

A

Oxygen.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

A colorless, gaseous agent. It is about 4/5 of the air in our atmosphere and is found chiefly in the form of ammonia and nitrates.

A

Nitrogen.

18
Q

The gaseous mixture that makes up the earths atmosphere, its odorless, colorless. It contains a small amount of organic matter which is essential to plant and animal life.

A

Air.

19
Q

It comprises about 75 percent of earths surface and about 65 percent of the human body:

A

Water.

20
Q

What does pH stand for?

A

Potential Hydrogen.

21
Q

A neutral pH is:

A

7.

22
Q

A chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized is called:

A

Oxidation-reduction reaction,

23
Q

Rapid oxidization of a substance, accompanied by the production of heat and light is called:

A

Combustion.

24
Q

These are used to stabilize skincare products by preventing oxidation that would cause a product to turn rancid:

A

Antioxidants.

25
Q

“Super” oxidizers that cause an oxidation reaction and produce a new free radical in the process are called:

A

Free radicals.

26
Q

A uniform mixture of ___ or more mutually miscible substances is called a solution.

A

2.

27
Q

Any substance that IS DISSOLVED by a solvent to form a solution is:

A

A solute.

28
Q

Any substance THAT DISSOLVES the solute to form a solution is:

A

Solvent.

29
Q

What is the difference between miscible and immiscible?

A

Miscible means mixable, immiscible means non-mixable.

30
Q

An unstable mixture of 2 or more immiscible substances is called:

A

Suspension.

31
Q

What type of substances are mixed together to form emulsions?

A

2 or more immiscible substances.

32
Q

Surfaces have two ends, what are they?

A

Hydophilic and lipophilic.

33
Q

Unstable molecules that cause inflammation, disease and biochemical aging in the body, especially wrinkling and sagging in the skin are called:

A

Free radicals.

34
Q

An unstable mixture of two or more immiscible substances (substances that normally will not stay blended) united with the the aid of an EMULSIFIER is called:

A

An emulsion.

35
Q

Oxidation is defined as:

A

The addition of the loss of hydrogen.

36
Q

The simplest form of matter, cannot be broken down into a simpler form without the loss of identity, this is known as:

A

An element.

37
Q

Having an affinity or an attraction to fat and oils (oil-loving) is called:

A

Lipophilic.

38
Q

An atom or molecule that carries an electrical charge is called:

A

An ion.

39
Q

An ion with a negative electrical charge is known as:

A

An anion.

40
Q

An ion with a positive charge is known as: ++

A

A cation.

Esthetics (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions