Properties Of Acids And Bases Flashcards
How are acids and bases similar?
-Found in many house hold items and substances we use daily
-can corrode or rust metal
-cause severe burns to skin/eyes
-conduct electricity
-can be mixed to form a neutral solution
How are acids and bases different?
What is a PH Scale?
A measure of how acidic or basic a substance is, ranging from 0-14
What can the PH Scale tell me about acids and bases related to water?
Water is neither and acid nor a base, it is neutral. Water is located in the middle of the scale with a PH of 7.
What are acids and bases?
Acids and bases are two different substances that you encounter in everyday life, each with its own unique properties
Acids and Bases, THE PH SCALE. Less than 7=
Acidic
7 on a PH scale =
Neutral
Greater than 7 on a PH scale =
Basic or alkaline (14 is the strongest)
What is an Indicator used to determine?
PH level of a substance
An indicator is like a ________
Color changing detective
Indicators change to specific colors in the presence of an _______
Acid or base
________ is specially treated to turn red in the presence of _____ an acid and remain ______ in the presence of a base.
Litmus Paper, RED, BLUE
________is specially treated to turn blue in the presence of a base
Red Litmus
________ is a natural indicator that ranges in color from red or pink in the presence of an acid to green or yellow in the presence of a base.
Red cabbage juice
Name two properties of acids….
-Taste sour
-react strong with metals
-have a PH level below 7
-turn blue litmus paper red
What are some examples of Acids?
-Citric fruits (lemons and oranges)
-soft drinks
-green leafy vegetables such as spinach
-vinegar
-aspirin and ibuprofin
Strong acids have a ________ PH level and extreme __________ properties.
Very low, acidic
Strong acids can be very _______ and dangerous
Reactive
Strong acids can be found in _____________, _____________, ______________
Car batteries, cleaning properties, fertilizers
Name two properties of bases:
taste bitter
Feel slippery or soapy
Have a PH level above 7
Turn red litmus paper blue
Bases are found in:
Deodorants
Antacids
Toothpastes
Washing Detergents
Strong Bases have high or low Ph levels?
High
Are strong bases reactive or non reactive?
Very reactive
Many strong bases are used in __________ and _________.
Cleaning products and dish detergents
Our stomach uses _________ to help digest food and to kill bacteria that can make us sick
Hydrochloric Acid
Our muscles produce ___________ when we exercise
Lactic Acid
Our _________ produces a base called bicarbonate to neutralize the stomach acid as it passes into the small intestine
Pancreas
________ affects all life and systems on earth. If it is too acidic it will affect many things
Water
How does PH and the environment affect soil?
Fertile soil is vital for plant growth
Why do plants need PH and the environment?
Plants depend on water for growth
Why does wildlife need ph and the environment?
Herbivores depend on the plants for food and carnivores depend on some herbivores, and aquatic organism depend on water for survival.
What does water quality affect?
Lakes / fish
A healthy lake has a ph of 6.5
A ph of 4 is deadly to a fish
