Flame Test (known) See the list of ions to see the results of the flame test. Record Your Observations

Q: 3) Based upon your initial mass of Cu, calculate the theoretical mass of Cu,S you could produce

A: Calculation  of theoretical mass of Cu2S

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO, and H,O. When…

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Q: Beryllium #3 #3 #3 Add Here! Aluminum #3 #3 #3 #3 Add Here! Phosphorous #3 #3 #3 #3 Add Here! Oxygen…

A: Electron dot structures are diagrams that show how the valence electrons of atoms in a molecule are…

Q: How should you determine the mass of magnesium in your crucible? 1. Zero the scale 2. Put your…

A: The question is based on the concept of analytical chemistry. we need to identify the correct…

Q: The mass spectrometer may be used to A. Electrolyze water B. Detect the presence of isotopes C.…

A: We need to find where mass spectrometry can be used.

Q: What is the "law of conservation of mass" and explain how it relates to why must chemical equations…

A: The ‘law of conservation of mass’ says that mass in an isolated system is neither created nor…

Q: How many moles of neon are contained in the following volumes at Standard Temperature and Pressure…

A: One mole of ideal gas will occupy volume of 22.4 liters at STP   a)  44.00 L so number of moles of…

Q: 20. According to the law of conservation of mass: A. energy will be lost during every endothermic…

A: We have been asked the defination of law of conservation of mass

Q: A chemical changes       Your answer:   The substance changes   The substance stays the same…

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Q: pure density liquid A. 31. What is the density of a mixture that is 2.3 moles A and 2.7 moles B?…

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Q: Compute the volume of SO2 gas produced at ambient conditions, 760 Torr and 22.7 °C.

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Q: Find the percentage of calcium (Ca) in the powdered eggshell sample used.

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Q: During a chemical reaction, atomic number_________. Select one: a. changes and then is restored b.…

A: A chemical reaction involves in change in number of electrons.

Q: What information is important to those who will be analyzing the samples?

A: Various types of analysis of compounds are performed in chemistry. These analysis helps in finding…

Q: What are the values for % Cl and % F, respectively, for Sample II?A. 0.622 and 61.65 C. 38.35 and…

A: Mass percent of a compound is equal to the mass of component divided by the total mass of all the…

Q: List the steps in a chemical analysis.

A: Chemical analysis: The study of a chemical compound or an analyte in order to gain more information…

Q: Br- CI The chlorine in is at position

A: In cases of halogen priority is decided by atomic no. More the atomic no. More is the priority.…

Q: what are these molecules relationship? B B

A: Given set of molecules:We have to find the relationship between these molecules

Q: Which of the following is incorrect?   A. Fluorine will always have an oxidation number of -1 in all…

A: Given  1)   Which of the following is incorrect?   A. Fluorine will always have an oxidation…

Q: Evidence of physical change include:   a. Change of state   b. Dissolving   c.…

A: The objective of the question is to identify which of the given options are evidence of a physical…

Q: Use the sample experimental data to calculate the mass of residue (BaCl2)  Mass of pan 15.110 g…

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Q: Could we have used other materials instead of copper and zinc plates ? If so, list 2 other materials…

A: The question is asking if there are alternative materials that could be used in place of copper and…

Q: A sample of carbon weighting 1.48 g was burned in an excess of air. The mass of carbon dioxide, the…

A: This can be calculated in context to the percent mass of carbon. The reaction occurring in the…