PLZ HELP MEEE! I will give BRAINLIEST
Chemistry Unit 2 Part 2
You are helping a chemist in...
PLZ HELP MEEE! I will give BRAINLIEST
Chemistry Unit 2 Part 2
You are helping a chemist in their lab, they give you a sample of an unknown substance. They tell you the substance has two isotopes. Unknown Isotope #1 – 63 amu and 70% abundance. Unknown isotope #2 – 65 amu and 30% abundance.
1. What is a scientific question about the substance you could ask given the information you have? 4 points.
2. Knowing that the average atomic mass could identify the unknown substance. Describe/state a model (mathematical) you could use to identify the substance. 5 points
3. You are given three samples of known substances that each looks like your unknown substance. Describe an experiment you could do to verify if your substance is the same as one of your known samples. What would your independent and dependent variables be in your experiment? 6 points
Answers: 2
Chemistry, 22.06.2019 06:30
Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.
Answers: 3
Chemistry, 22.06.2019 10:50
8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm
Answers: 1
Chemistry, 22.06.2019 15:00
Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat
Answers: 1
Chemistry, 22.06.2019 16:40
Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+
Answers: 1
History, 12.12.2019 08:31
Social Studies, 12.12.2019 08:31
English, 12.12.2019 08:31
Mathematics, 12.12.2019 08:31
Physics, 12.12.2019 08:31
Chemistry, 12.12.2019 08:31
Physics, 12.12.2019 08:31
Geography, 12.12.2019 08:31
Mathematics, 12.12.2019 08:31
English, 12.12.2019 08:31
Health, 12.12.2019 08:31