subject
Chemistry, 20.01.2020 13:31 samantha636

What two quantities must be known to calculate the density of a sample of matter?
a. mass and volume
b. length and mass
c. size and weight
d. weight and volume

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 03:00
Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge
Answers: 1
question
Chemistry, 22.06.2019 04:00
Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.
Answers: 2
question
Chemistry, 22.06.2019 08:00
This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.
Answers: 1
question
Chemistry, 22.06.2019 15:30
What best discribes the relationship between wavelength and frequency in a electromagnetic wave
Answers: 1
You know the right answer?
What two quantities must be known to calculate the density of a sample of matter?
a. mass an...
Questions
question
SAT, 28.01.2021 01:00
question
Mathematics, 28.01.2021 01:00
question
English, 28.01.2021 01:00
question
Physics, 28.01.2021 01:00