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Report the results with the correct number of significant figures and show your calculations to receive full credit. Name: 1. Two samples of carbon monoxide are decomposed into their constituent elements. One sample produces 17.2 g of oxygen and 12.9 g of carbon, and the other sample produces 10.5 g of oxygen and 7.88 g of carbon. Show that these results are consistent with the law of definite proportions 2. Nitrogen forms several compounds with oxygen, including nitrogen dioxide and dinitrogen monoxide Nitrogen dioxide contains 2 28 g oxygen to every 1.00 g nitrogen, while dinitrogen monoxide contains 0.570 g oxygen to every 1,00 g nitrogen Show that these results are consistent with the law of multiple proportions. 3. The following are properties of isotopes of two elements that are essential in our diet. Determine the number of protons, neutrons and electrons in cach and name them. (a) atomic number 26, mass number 58, charge of 2+ (b) atomic number 53, mass number 127. charge of l- 4. Complete the table below. Each raw characterizes an isotope of a neutral atom. Report the isotope symbols using the X format isotope #protons #electrons symbol #neutrons Z 26 58 35 80 29 34 47 60 37 Ar 81 Br CI 32P Page 3/4 5. Calculate the average atomic mass of magnesium, Magnesium has 3 naturally occurring isotopes with the following masses and natural abundances isotope Mass abundance 23.9850 amu 78.99% 24.9858 amu 10.001% 25.9826 amu 11.01% Report the results with the correct number of significant figures. Show your calculations "Mg 2SME Mg 6. Calculate the mass () of silicon, Si, if you begin with 5.84 x 10-* atoms of silicon 7. Calculate the mass (g) of zinc, Zn, if you begin with 8:35 moles of zine Page 4/4 8 How many grams of (oxygen) are in 25.22 gram of pure NaHCO2 9. How many grams of Hate in 93.2 grams of PHI? 10. How many atoms of Hare in 932 grams of PH