Chapter 1 Flashcards
What is chemistry the study of?
Matter, it’s properties, the changes that matter undergoes, and the energy associated with these changes
what is light ?
anything that has both mass and volume
what do measured quantities always have?
a number and a unit
350mi/7h = ?
50mi/hr OR 50 mi hr^-1
what’s mass measured in?
kilograms (kg)
what’s length measured in?
meter (m)
what’s time measured in ?
seconds (s)
what’s temperature measured in?
kelvin (K)
what is electric current measured in?
ampere (A)
what is the amount of substance measured in?
mole (mol)
cm = ?
10^-2 m
3km = ?
3 x 10^3 m
1 in = cm?
2.54 cm
1 ft = in?
12 in
1 mi = ft?
5280 ft
1 yard = ft?
3 ft
1 mL = cm?
1cm^3
1cm^3 =?
1 cc (cubic centimeter)
how many centimeters are in 1dm?
10 cm
what does cc stand for
cubic centimeter
1 mi = 5280ft or 1mi/5280 ft . it looks like a fraction but what is it equal to?
1 because one mile is equivalent to 5280 feet
when solving a problem what should you never start with ?
conversion factors
to wire your steep equipment, you need 325 centimeters of speaker wire that sells for $0.15/ft. what’s the conversion factor?
$0.15/ft
g/mL is the same as?
g/cm^3
how do you find density ?
mass / volume
lithium, a soft, gray solid with the lowest density of any metal, is a key component of advanced batteries. a slab of lithium weighs 1.49 x 103mg and has sides that are 20.9mm by 11.1mm by 11.9 mm. find the density of the lithium in g/cm^3. then convert your answer to kg/L.
0.540kg/L
what does 1000 mg convert to?
1 g
what does 60 minutes convert to?
1 hour
what does 2.54 cm convert to?
1 in
how many minutes are there in 3.652h?
219.1 minutes
