ACIDS + BASES Flashcards
1
Q
ACID
A
A substance that produses hydrogen ions in solution
2
Q
BASE
A
a substance that produces hydroxide ions in solutions
3
Q
Acid characteristics
A
- sour taste
- corrosive
- blue litmus paper to red
- pH<7 (1-6)
- electrolyte
- react with metals to produce salt and hyrogen gas
react with metals carbonate to produce a salt, water and carbon dioxide - neutralised by bases to produce a salt and water
4
Q
Base characteristics
A
- tastes bitter
-soapy and slippery - caustic
- red litmus paper blue
- pH >7 ( 8-14)
- electrolyte
- neutralised by acids to produce a salt and water
-the strength of a base depends on how many hydroxide (OH-) ions are released
5
Q
Concentration+Strength of Acid
A
- all acids contain hyrogen
- most are molecule compounds when the dissolve in water the form hydrogen ions
-the strength of an acid depends on hoy many hydrogen ions are released
6
Q
What are the requirements of cells to function?
A
Chemical reactions – metabolism
Getting nutrients (digestive system)
Getting oxygen (respiratory system)
Remove waste (excretory system)
7
Q
Interdependence of Systems
A
Each system depends on others and cannot function without them
8
Q
Diffusion
A
the movement of particles in a substance from an area of high concentration to an area of low concentration until they are evenly dispersed.
9
Q
CELLULAR RESPIRATION
A
Glucose+Oxygen–> Carbon Dioxide+water
10
Q
A
