Science study flashcards 3( acids and bases )

Question 1

What is a PH

Answer 1

number between 0 and 14 that tells us how acidic or basic a substance is

Question 2

What is alkali

Answer 2

a base that can dissolve in water

Question 3

What is acidic

Answer 3

substance with a PH between 0 and 7

Question 4

What is a base

Answer 4

substance with a PH between 7 and 14

Question 5

What is neutral

Answer 5

substance that is neither an acid or a base, with a PH of 7

Question 6

What is an indicator

Answer 6

a dye that is changed into different acids, bases and buetrla substances

Question 7

What is the universal indicator

Answer 7

PH indicator consisting of substances, so that it causes colour changes across the entire PH range

Question 8

PH scale

Answer 8

scaling of PH values, shows numbers from 1 to 14, with 7 as the middle neutral point

Question 9

Independent variable

Answer 9

the factor that changes the scientist in an experiment/ investigation

Question 10

Dependent variable

Answer 10

the quantity or quality measured or observed by an experiment

Question 11

What is the property of an acid ( taste, PH, indicator paper, electrical conduction, feel, corrosivity, ions

Answer 11

sour, less than 7, turns blue litmus paper red, conduct electricity, can feel rough on skin, can burn, hydrogen ions

Question 12

What is the property of a base ( taste, PH, indicator paper, electrical conduction, feel, corrosivity, ions

Answer 12

bitter, greater than 7, turns red litmus paper blue, conduct electricity, feels smooth, can burn, hydroxide ions

Question 13

Independent variable is on the

Answer 13

x axis

Question 14

Dependent variable is on the

Answer 14

y axis

Question 15

Give me examples of a household acid

Answer 15

lemon juice and fruit acids

Question 16

Give me an example of a strong household acids

Answer 16

hydrochloric acid ( HCL ) nitric acid ( NHO3)

Question 17

Give me an example of a household base

Answer 17

soap and handy Andy