1. Is mass really conserved during a chemical change? Describe what it means to go through a chemical change, and an experiment you could do to test the Law of Conservation of Mass. Your description should include ALL of the following: a. A definition of the Law of Conservation of Mass b. Why the fact that all matter is made of atoms helps explain the Law of Conservation of Mass c. An explanation of what it means to go through a chemical change, and what happens to atoms and chemical bonds during this process

Q: D what is the mass of aluminunm Oxide Hoti9e almoD produced fom 174a AGn ganose (N) oxide cole a4…

A: Mass of MnO2 = 1.74 g  We need to determine mass of Al2O3 formed.

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A: Given: Mass of sample = 0.090 g. And n-H2 = 2.720 × 10-2 moles.

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Q: A 15.79 g sample of a hydrate of an iron(II) sulfate compound was heated, without decomposing the…

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Q: Given these reactions, where X represents a generic metal or metalloid 1)…

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Q: 25. A sample of a compound contains 9.49g silver and 3.12g chlorine. A second sample of the compound…

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Q: Mass of crucible, lid, and magnesium oxide                                             ____19.41…

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Q: What is combustion analysis? What is it used for?

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A: Molecular formula indicates simple number of each atom in a molecular substance

Q: 30. A sample of a compound containing only S and Cl contains 2.72g S and 6.04g Cl. Another sample of…

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Q: Given these reactions, where X represents a generic metal or metalloid 1)…

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Q: Given these reactions, where X represents a generic metal or metalloid   1)…

A: Given that: 1) H2(g)+12O2 (g)⟶H2O (g)               ΔH1=−241.8 kJ 2) X (s)+2Cl2(g)⟶XCl4 (s)…

Q: same on both sides of the reaction arrow.

A: In the balance chemical reaction number of atoms of each element in both sides remains same

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.