Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
acid
|
pH < 7; tastes sour; litmus paper turns red; H+ ions; corrosive |
|
|
base
|
pH > 7; tastes bitter; litmus paper turns blue; OH- ions; slippery
|
|
|
examples of acids
|
apple juice; coke; vinegar; HCl |
|
|
examples of bases
|
baking soda; household cleaners; soap; NaOH
|
|
|
physical change
|
alters the form of an object without changing what type of matter it is
|
|
|
chemical change
|
a change in matter in which the substances that make up the matter change into other substances
|
|
|
sublimation
|
a substance that changes from a solid to a gas without changing to a liquid
|
|
|
flammability
|
a chemical property that describes a substances ability to catch on fire or burn
|
|
|
pH scale
|
measures the strengths of acids and bases (0 to 14)
|
|
|
indicators
|
litmus paper and cabbage juice
|
|
|
neutralization
|
a reaction that occurs when an acid and base are mixed
|
|
|
reactivity
|
describes how easily one substance reacts with another substance
|
|
|
precipitate
|
a solid that forms when one liquid is poured into another
|
|
|
signs of chemical change
|
formation of bubbles (gas); color change; precipitate forms; release or absorb energy
|
|
|
examples of chemical change
|
digestion, baking, burning, rusting, combustibility
|
|
|
examples of physical change
|
change of state, dissolving, density, malleability, crushing, change of size
|
