A 8.95 g sample of calcium sulfide was decomposed into its constituent elements, producing 4.98 g of calcium and 3.97 g of sulfur. Which of the statements are consistent with the law of constant composition (definite proportions)? A. Every sample of calcium sulfide will have 55.6% mass of calcium B. The mass ratio of S to Ca in every sample of calcium sulfide is 0.80. C. Every sample of calcium sulfide will have 4.98 g of calcium. D. The ratio of calcium to sulfur will vary based on how the sample was prepared.

Q: 2. Use the following table of bundances and masses of the five aturally occurring titanium isotopes…

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Q: Consider two compounds. Compound A contains 15.7 g of sulfur and 18.6 of fluorine. Compound B…

A: Mass of fluorine in compound A = 18.6 g Mass of sulfur in compound A = 15.7 g Mass ratio of fluorine…

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Q: A sample of hydrogen sulfide, H2S, had a mass of 51.00 g. Calculate the number of hydrogen sulfide…

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Q: 7. The seven most abundant ions in seawater make up more than 99% by mass of the dissolved…

A: The seven abundant ions in sea water makes 99 % by mass of dissolved compounds .

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Q: Which of the following statements is the law of definite proportions? a. All elements in a compound…

A: we have to determine the true statement for the law of definite proportions

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Q: [Atomic Weights: Zn 65.39 amu S 32.07 amu O 16.00 amu Report Table Express each number to the…

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Q: 4. Which pair could be used to demonstrate the law of multiple proportions? O A. CuCl2 and CuCl O B.…

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Q: Naturally occurring bromine is composed of two isotopes: 50.69 % Br-79 (mass of 78.9183 amu) and…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.