Chemistry Review

Question 1

How much of your food dollar goes to farms?

Answer 1

22%

Question 2

Food science

Answer 2

the study of the composition of food and the process used to convert raw agricultural products into more acceptable forms

Question 3

Food quality

Answer 3

form of scientific standpoint, a measurement obtained by grading or classifying a products chemical and physical characteristics in accordance w/ predetermined specifications

Question 4

external factors

Answer 4

media, race,culture, location, traditions, holidays, and individual experiences

Question 5

essential elements

Answer 5

appearance and texture

Question 6

advertising

Answer 6

length of time, repetition, media use, strategies

Question 7

matter

Answer 7

anything that occupies space and has mass

Question 8

element

Answer 8

substance that contains only one kind of element

Question 9

atom

Answer 9

nucleus (protons and neutrons) and electrons
smallest unit of an element
cannot be broken by any chemical means

Question 10

neutron

Answer 10

neutral and in the nucleus

Question 11

proton

Answer 11

positive and in the nucleus

Question 12

electron

Answer 12

negative and travels around the nucleus

Question 13

Valence electron

Answer 13

outer shell electron

Question 14

Ion

Answer 14

a molecule that has acquired a charge by either gaining or losing electrons

Question 15

neutral charge

Answer 15

same number of protons and electrons

Question 16

positive charge

Answer 16

more protons than electrons

Question 17

negative charge

Answer 17

more electrons than protons

Question 18

molecule

Answer 18

atom plus an atom plus an atom

Question 19

ionic bond

Answer 19

transfer electrons

Question 20

covalent bond

Answer 20

share electrons

Question 21

electronegativity

Answer 21

forces an atom has to attract other electrons (grade form 0-4) zero is weak and 4 is strong

Question 22

Types of covalent bonds

Answer 22

polar and non polar

Question 23

nonpolar bonds

Answer 23

even sharing of electrons between two atoms

Question 24

polar bonds

Answer 24

unequal sharing between two atoms

Question 25

hydrogen bonds

Answer 25

are very weak because of the polar bond (most of the time hydrogen bonds will be referring to water)