Unit 5- Chemical Reactions

Front 1

chemical reactions

Back 1

a change in which one or more substances are converted into new substances (re arranged)

Front 2

what is the law of conservation of mass

Back 2

matter cannot be created or destroyed buy conserved (total starting Mass) mass of all reaxtants equals final mass of all products

Front 3

what are signs of chemical reactions

Back 3

color change , increase/decrease in temperature, gas production, , bubbles, change in properties , denisty, smell, yaste, melting point, formation of gas, temperature, sound, light, heat, or precipitation

Front 4

what is the source of chemical energy

Back 4

stored within molecules that can be released when a substance reacts

Front 5

what does every chemical reaction need

Back 5

energy

Front 6

reactant

Back 6

substance that reacts

Front 7

product

Back 7

new product

Front 8

what is the fomula

Back 8

reactant yield product

Front 9

catalyst

Back 9

speeds up chemical reactants

Front 10

inhibitor

Back 10

slows down chemical reaction

Front 11

synthesis reaction

Back 11

two elements form a larger compound

Front 12

what does the product do in a synthesis reaction

Back 12

the product is more complex than the reactant

Front 13

diatonic element

Back 13

an element that always pairs with itself when it's alone

Front 14

decomposition reaction

Back 14

reactants break apart - opposite

Front 15

composition reactant

Back 15

anything that burns
involved hydrocarbon
and oxygen.
produces carbon dioxide and water

Front 16

what is oxygen involved with in a composition reactions

Back 16

oxygen is always involves in a combustion reaction

Front 17

single displacement (replacement)

Back 17

one element from a compound is replaced

Front 18

what can a single displacement be called

Back 18

stud and dud reaction

Front 19

what does a postive replace in a single displacement

Back 19

a postive

Front 20

double displacement

Back 20

both compounds switch anions

Front 21

what will a double displacement create

Back 21

gas or precipate

Front 22

acid base reaction

Back 22

an acid and a base will neutralize each other

Front 23

what will an acid base look like

Back 23

always have an acid (4+) and a base (0H -4) in the tractable and it always produce water and a salt (ionic compound )

Front 24

what happens in an exothermic reaction

Back 24

chemical energy us concerted into heat and us released into the surrounding

Front 25

what is the energy in an exothermic reaction

Back 25

exothermic reactions contain more chemical enwgy than it produces

Front 26

what does the temperature do in an exothermic reaction

Back 26

the temperature increases

Front 27

what is the product in exothermic reactions

Back 27

heat

Front 28

what is an exothermic reaction

Back 28

heat energy is absorbed from the surrondinh and converted into chemical energy

Front 29

what is the chemical energy in a enxothermic

Back 29

the reactant contains less energy than the products

Front 30

what happens to the temperature

Back 30

temperature if yhe surrondinh ares goes down

Front 31

how do endothermic reactions feel

Back 31

cold to touch

Front 32

catalyst

Back 32

speeds up chemical reacton

Front 33

inhibitors

Back 33

slows down a reaction

Front 34

what does the graph of a catalyst working look like

Back 34

Front 35

what does heat do the atoms

Back 35

it speeds them up

Front 36

what does coldness do to a reaction

Back 36

cold slows down a reaction

Front 37

concentricting

Back 37

adding more of a specific substance -> speeds up

Front 38

what does alluring elements do?

Back 38

slows down a reaction

Front 39

what does increasing surface area do

Back 39

increasing surface area increases speed

Front 40

what does stirring a substance do

Back 40

speeds up atoms

Front 41

what will decreasing the surface area do

Back 41

slows down the reaction

Front 42

acid

Back 42

a substance that produces hydrogen ions in water solution

Front 43

how do acid taste

Back 43

sour

Front 44

what do acids react to and what do they do

Back 44

acids react to metals to form hydrogen gas

Front 45

what will acids do to litmus paper

Back 45

it will turn blue litmus paper red

Front 46

what is an example of an acid

Back 46

HCl -> H + Cl

Front 47

what is a base

Back 47

a substance that produces hydroxide ions in a water solution

Front 48

what does a base taste like

Back 48

bitter

Front 49

what will a base do to litmus paper

Back 49

turn it blue

Front 50

what do bases feel like

Back 50

slippery to the touch

Front 51

what does a strong acid do

Back 51

it dissolves in water (all a I'd molecules dissootate into ions)

Front 52

what do strong acids have alot of

Back 52

H's

Front 53

what does a weak acid do

Back 53

dissolves in water (small factions of molecules )

Front 54

strong base

Back 54

disocates completely in a solution

Front 55

what does a strong base do

Back 55

separates

Front 56

how does a strong base form OHs

Back 56

easily

Front 57

what dies a week base do

Back 57

does not dissociate completely

Front 58

what is an indicator

Back 58

an organic comping thay Chandra in color in and acid and base

Front 59

what is Ph

Back 59

a measure H+ consentation

Front 60

what does a Ph scale go to

Back 60

0-14

Front 61

what is left 7

Back 61

acid

Front 62

what is right of the 7

Back 62

base

Front 63

what is 7

Back 63

neutral

Front 64

what does the pH scale increase by

Back 64

10x

Front 65

what is the universal indicator paper

Back 65

litmus paper/ ph paper