2. How many moles of sulfur are produced if 2.215 moles of sulfur dioxide are decomposed into its elements? SO, - S+ 02

The combustion of propane produces carbon dioxide and steam.             C3H8(g)  +  5 O2(g)  →  3 CO2(g)  + 4 H2O(g) All of the following statements concerning this reaction are correct EXCEPT a) three molecule of carbon dioxide are formed per one molecule of propane consumed. b) five molecules of oxygen are consumed per one molecule of propane consumed. c) four moles of steam are formed per five moles of oxygen consumed. d) the combined mass of reactants consumed equals the mass of products formed. e) three grams of carbon dioxide are formed per five grams of oxygen consumed.

For the reaction 2 HCl + Ca(OH)2 - CaCl₂ + 2H₂O how many grams of calcium chloride, CaCl2, are produced from 79.1 g of hydrochloric acid, HCI? mass of calcium chloride: Resources

1) The explosive RDX has the chemical formula C3H6NO6. Balance the following combustion reaction for RDX. C3H6N606(s) _CO(g) + H₂O(g) + N2(g) 2) Based on the above reaction, would you expect RDX to produce a lot of smoke when it is burned?

Suppose a pair of chemical compounds A and B can react in two different ways: A+B C Reaction 1 gives product C. A+B D →> Reaction 2 gives product D. The following facts are known about the two reactions: • Reaction 1 is endothermic and Reaction 2 is exothermic. • If a reaction vessel is charged ("filled") with A and B, then at first C is produced faster than D. Use these facts to sketch a qualitative reaction energy diagram for both reactions. Note: because these sketches are only qualitative, the energies don't have to be exact. They only have to have the right relationship to each other. For if one energy is less than another, that fact should be clear in your sketch. energy A + B Reaction 1 reaction coordinate energy A + B Reaction 2 reaction coordinate ☑

Consider the formation of disodium oxide shown below: 4Na(s) + O₂(g) → 2Na₂O(s) If you want to produce 18.48 moles of Na₂O, how much of each reactant must you start with? Na: Write your response here.. 0 moles Please type your answer to submit O₂ ice your response here... moles

Balance the following equations in which ethane, C2H6, burns in oxygen.    C2H6(g) + O2(g) --> C(s) + H2O(g)    C2H6(g) + O2(g) --> CO(g) + H2O(g)    C2H6(g) + O2(g) --> CO2(g) + H2O(g) d.   Explain why the coefficients for oxygen vary, depending on whether C, CO, or CO2 is formed.

Request They Both Die at t... ula Enchanted Wa... Question 6 of 20 Balance the following chemical equation (if necessary): Sio,(s) + C(s) → Si(s) + CO(g) 04- 2. 3+ O4+ 1 6. 7 8. 9. Os 6. O9 (s) (1) (g) (aq) C Si Reset • x HO Delete MacBook Air 000 F3 F4 F5 @ %23 2$ % 2 3 5 6. 8 9. W E 5 4- 3. 2. 14

General Chemistry 4th Edition McQuarrie • Rock • Gallogly University Science Books presented by Macmillan Learning Cryolite, Na, AIF,(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al, 0, (s)+NAOH(1)+HF(g) Na, AIF, + H, O(g) If 12.9 kg of Al,0,(s), 56.4 kg of NaOH(1), and 56.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced? mass of cryolite produced: kg Na, AlF, Which reactants will be in excess? NaOH Al, O3 HF What is the total mass of the excess reactants left over after the reaction is complete? total mass of excess reactants: kg Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry | Publisher: University Science Books

Chemistry How many carbon dioxide molecules are there in 14.4 gigatonnes of CO2? How many carbon dioxide is generated by burning 2.2 gigatonnes of coal? The molar mass of CO2 is 44.01 g/mole