Chemistry, 30.11.2020 06:50, priscillaoliver4487
Present Your Findings
Write a summary paragraph discussing this experiment and the results. Use the following questions to help guide the content of your paragraph.
Submit your recorded observations for each step.
Step 1: Burning Candle - record the mass and write your observations
Step 2: Cooling Candle - record the mass and write your observations
Step 3: Tearing paper - record your observations
Step 4: Wet paper - record your observations
Step 5: Burning pieces of paper - record your observations
Step 6: Salt and water in test tube - record your observations
Step 7: Baking soda and vinegar - record your observations
Answer the following questions.
What is the difference between a physical change and a chemical change?
What kind of change occurred in each test? What evidence do you have to support your decision? Be brief, but be sure to defend your conclusion with data.
Answers: 3
Chemistry, 22.06.2019 14:00, jivsf
The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.
Answers: 3
Present Your Findings
Write a summary paragraph discussing this experiment and the results. Use the...
Mathematics, 18.07.2019 02:30
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