Basics of Chemistry

Question 1

The smallest particle of an element is the _____.

Accepted Answer

atom

Question 2

___organic compounds are substances containing carbon that evaporate quickly and easily.

Accepted Answer

volatile

Question 3

The tail of a surfactant molecule is____, meaning oil-loving.

Accepted Answer

lipophilic

Question 4

If a product has a pH of 8.9, it is considered_____.

Accepted Answer

alkaline

Question 5

An example of an elemental molecule is

Accepted Answer

atmospheric oxygen

Question 6

When a substance is combined with oxygen the substance is _____.

Accepted Answer

oxidized

Question 7

Which of the following are the basic building blocks of all matter?

Accepted Answer

atoms

Question 8

Redox is a contraction for _____.

Accepted Answer

oxidation -reduction

Question 9

H is the symbol for which element

Accepted Answer

hydrogen

Question 10

The separating of a substance into ions is known as ____.

Accepted Answer

ionization

Question 11

A combination of substances that are held together by physicl rather than chemical is called

Accepted Answer

mixture

Question 12

Liquids that mix easily are known as _____.

Accepted Answer

miscible

Question 13

A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound is

Accepted Answer

a reducing agent

Question 14

Temporary mixtures of two kinds of matter are ___.

Accepted Answer

suspensions

Question 15

A permanent mixture of two or more substance that are united with the aid of a binder is ___.

Accepted Answer

an emlulsion

Question 16

A molecule is formed by joining two or more___ chemically.

Accepted Answer

atoms

Question 17

A chemical reaction in which oxygen is subtracted from Hydrogen is called____.

Accepted Answer

reduction reaction

Question 18

What type of change occurs when ice melts and becomes water?

Accepted Answer

physical

Question 19

Pure water with a pH of 7 is considered to be___

Accepted Answer

neutral

Question 20

Another name for alkalis is _____.

Accepted Answer

bases

Question 21

Organic chemistry is the study of all substances containing_____.

Accepted Answer

carbon

Question 22

The head of a surfactant molecule is ____meaning water-loving.

Accepted Answer

hydrophilic

Question 23

There are about ___naturally occurring elements, each with its own distinctive properties.

Accepted Answer

98

Basics of Chemistry

Questions 23

Basics of Chemistry

Questions 23