Please answer these questions 8) A chemistry student reacts a black metallic element with an element that exists as abright blue powder. What will the resulting chemical compound look like?A) The compound will appear mostly black since the color black will overpower thebright blue colorB) The appearance of the chemical compound is not dependent on the color of theoriginal elements.C) The color of the resulting compound will be a mixture of black and bright blue,leaning mainly towards the color black.D) The color of the resulting compound will be a mixture of black and bright blue,leaning mainly towards the color bright blue.9) A 98.4g sample of sulfuric acid, H2SO., was found to contain 32.4g of sulfur, S. What isthe percent by mass of sulfur in the sample?10) In a round-bottom flask, a chemist completely reacts 4g of hydrogen with 25g ofchlorine. What is the percent by mass of hydrogen in the compound that was formed?11) Two unknown compounds are tested to determine their composition. Compound A wasfound to contain, 16g of magnesium and 130g of sulfur. Compound B contains 9g ofmagnesium and 63g of sulfur. Are these the same compound? Explain your answer12) A chemical analysis of two unknown compounds found that they are both made up ofonly calcium and oxygen. During an analysis of their mass, it was found that they bothcontain the same percent by mass of calcium. However, the instrument used in theanalysis broke before the mass of oxygen could be determined. With only theinformation that is known, can you be sure that both compounds are the same? ment.pdf2) A chemist is attempting to synthesize, or create ammonia, NH3 in the laboratory. Hereacts 14.6g of nitrogen, N, with hydrogen gas, H, to form 27.9g of ammonia, NH3.Determine the mass of hydrogen that was used in the reaction.3) A chemical supply truck breaks down in the desert, and the driver is running out ofwater. He is at risk of dying from dehydration but remembers what he learned in hischemistry class. He decides to use some of the chemicals he is carrying to form waterthat he would be able to drink. He ultimately reacts 18.3g of hydrogen, H, with 8.8g ofoxygen gas to form drinkable water, H20. How much water did he create in his reactio4) An evil scientist is attempting to split up uranium hexafluoride, UF6, into its componen.elements, uranium, U, and fluorine, F. Once the process was complete, he was left witi70.5g of uranium and 36.3g of fluorine. What mass of the original uranium hexafluoridUFs did he have?5) A student in a chemistry class made a mistake and used a device that she was explicitlyasked not to use. The device broke apart 42.1g of hydrochloric acid, HCI, into hydrogengas, H, and 26.9g of chlorine, Cl. How much hydrogen gas was produced during thisprocess?

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A chemist is attempting to synthesize, or create ammonia, NH3 in the laboratory. He reacts 14.6g of nitrogen, N, with hydrogen gas, H, to form 27.9g of ammonia, NH3. Determine the mass of hydrogen that was used in the reaction.