litmus paper indicates whether a substance is an ______________ or base by turning red or blue
acid
Water has a pH of _____________ and is neutral
7
_________________ are slippery, have a pH above 7
and have an _____________ ion
Bases
Hydroxide (OH)
Gases _________________ (lose/gain) solubility as temperature increases
Lose
Flakes or powdered sugar dissolves ____________ (faster/slower) than a sugar cube-because the powder has more surface are
faster
A universal indicator tells us the _______ of a substance
pH
Milk is a slightly basic (alkaline) but gets nasty (sours) as it sits out and becomes _______________
acidic
_________________ are reactive with metal have a pH below 7 and have an _____________ ion
acids
H (hydrogen)
Most solutions (other than gases) increase ___________________ with increase temperature
solubilty
What 2 things can increase the rate of solubility in most solutions
stirring-(agitation)
Raising temperature
red
Which is a stronger acid-
pH of 0 or pH of 6?
pH 0
A solution that is saturated is ___________ (on/off/above) the solubility curve
on
what is the 'universal solvent'?
Water
Base (alkaline) turns red litmus paper to ___________
Blue
Which is a stronger base-
pH of 8 or pH of 14?
pH 14
A solution that is super saturated is ___________ (on/off/above) the solubility curve
above
Electrolytes tend to be ionic solutions that can conduct _____________
electricity
a solution with a pH of 0 is _____________ (stronger/weaker) than a solution with pH of 6
stronger
Bases are often used in ______________
cleaners like soap
A solution that is unsaturated is ___________ (on/off/above) the solubility curve
below
Solubility curves of gases tend to go __________ (up/down) and other solutions go_________(up/down)
down
up