Sig Figs
How many sig figs are in the number: 5.012
4
How many mm are in 12.5 km?
1.25x107
How many F are in 45 C?
113
Process that releases energy from the system to the surroundings
exothermic
What is the formula for density?
m/v
How many sig figs are in the number: 1.20x105
3
How many kg are in 1280 pg?
1.28x10-12
How many C are in 66 F?
18.8 C
a property that does not depend on the amount of substance
intensive
a process that absorbs energy from the surroundings into the system
endothermic
How many sig figs would be in the answer:
1.23 + 2.5
2
How many ft are in 300 m?
984.25
How many F are in 100 C?
212
what kind of energy is energy of motion
kinetic
what kind of energy is the energy of position?
potential
How many sig figs would be in the answer?
250.637 * 5.420
4
How many m2 are in 425 cm?
0.0425
How many K are in 25 C
298
Mass & volume are examples of what kind of property?
extensive
Higher energy = ____ stable whereas
Lower energy = _____ stable.
less; more
How many sig figs would be in the answer?
2.334 * 62.085 * 2.10
3
how many kg/m3 are in 12g/mL of water? Density of water is 1.0g/mL
12000 kg/m3
How many K are in 165 F?
346.9
which law states that energy is neither created nor destroyed, but transferred.
law of conservation of energy
As temperature Increases the density of most substances _______.
decreases