95 brainly points!!!! CHEMISTRY A UNIT 1 STUDY GUIDE HELP?!
Collaboration and Communication- Scientists collaborate because the research problem is so ____ or they might conduct research in exchange for ____ and the time to do the research.
Problem Solving
step 1 is to ____ the question and determine what information is known and unknown
step 2 is to calculate the ____
step 3 is to ____ your outcome
measurement- a quantity that has both a ____ and a ____
to evaluate ____, compare result to the correct value.
to evaluate ____, compare repeated measurements.
significant figures include ___ known digits plus ____ estimated digit.
rules of significant figures:
1. all non-zero digits are ____.(1-9)
2. zeroes at the ____ of a value do ____ count as significant. (3200mL)
3. ____ zeroes are significant. (508g)
4. zeroes at the ____ of a number that has a ____ are significant. (61.20cm)
5. when adding or subtracting, the answer can have the place of the _____ precise number.
6. for multiplying or dividing, the answer can have the number of the ____ precise measurement.
Why the metric system?
1. it is based on the number ___.
2. it crosses ____ barriers.
3. the SI unit of temperature is ____.
4. the ____ temperature scale has no negative temperatures
5. to convert a temperature from Celsius to Kelvin, ____ 273.15
6. to convert a temperature from Kelvin to Celsius, ____ 273.15
what is the volume of a salt crystal measuring 5.44 x 10^-2m by 2.5 x 10^-3m by 7.9 x 10^-3m?
what is the volume of 50.0 g of calcium if the density of calcium is .50 g/mL?
