A) deposition is the processes where particles of rock or laid down in sections with heavier sediments building up first
Nitrogen. air consists 78% of nitrogen gas
We need to first add both of the solution volumes together 35+115=150. Now we can divide the volume of the ethanol by the total volume 35/150=.233. To double check we can multiply the total volume by the percentage of ethanol by volume we got as a solution 150x.233=35. So the percentage by volume of ethanol in the solution is .233x100=23.3%.
Number one is physical change the other one is chemical change
Answer:
Answer below!
Explanation: Mean -- add all of the values and divide by the total number of data points.
Error -- subtract the theoretical value (usually the number the professor has as the target value) from your experimental data point.
Percent error -- take the absolute value of the error divided by the theoretical value, then multiply by 100
