acid and bases
what are examples of bases?
-baking soda (sodium bicarbonate) -calcium carbonate (in tums) -ammonia
what are 4 propertires to bases?
-taste bitter -feel soapy of slippery -do not react with metals or carbonates -turns red litmus paper blue
what is the arrangement of the pH scale?
-the most acidic substances are found at the low end of the scale (0-6.9) -the most basic substances are found at the high end (7.1-14) -neutral substances are found in the middle (7)
what are bases?
A substance that tastes bitter, feels slippery, and turns red litmus paper blue.
What is the different in taste of acids and bases?
Acids are sweet while bases are tart
what is the difference in they way acids and bases feel?
Acids are watery while bases are slippery
What is litmus paper?
An indicator that turns blue to show base and red to show acid
What are similarities between acids and bases?
They react with litmus paper and when mixed they form salt and water
what are acids?
a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red, typically, a corrosive or sour-tasting liquid of this kind
what is an indicator?
a compound that changes color when it comes in contact with an acid. it will turn red
what are 3 examples of acids?
acetic acid (in vinegar), citric acid (in lemons), phosphoric acid (in colas)
what dissolves some metals?
acid
what is a chemical substance that neutralizes alkalis?
acid
what does a neutralization reaction involve?
an acid and base
what is alkali another word for?
base
what is pH?
measure of hydrogen ion concentration
what are 5 examples of everyday acidic substances?
milk, dr.pepper, dasani water, and apples
what do bases do in a solution?
produce hydroxide ions (OH-) in water...the more hydroxide ions in water = the stronger the base
what are the 4 properties of acids?
reacts with metals (are corrosive), react with carbonates (to produce CO2), tastes sour, and turns litmus paper red (turns indicator solution pink-red)
in a neutralization reaction, what does the final pH depend on?
the volume, concentration, and strength of each reactant
what do acids do in solutions?
they produce hydrogen ions (H+) in water, the more hydrogen ions in water = the stronger the acid
what does a neutralization reaction produce?
water and some type of salt