Which equation is balanced?
C + CaO = CaC2 + CO
C2H4 + 2O2 = 2CO2 + H2O
2Sb + Cl2 = SbCl2
4Na + O2 = 2Na2O2
2KClO3 = 2KCl + 3O2
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Which equation is balanced? C + CaO = CaC2 + CO C2H4 + 2O2 = 2CO2...
Which equation is balanced? C + CaO = CaC2 + CO C2H4 + 3O2 = 2CO2 + 2H20 2Sb + Cl2 = SbCl2 Na + O2 = Na2O KClO3 = KCl + O2
Which is the correct and balanced equation for the combustion reaction of the molecule C,H2 that produces carbon dioxide and water? 1- C2H4 + 3O2 → 2CO2 + 2H20 2- C2H4 + O2→ C2H4O2 3 -C2H4 + O2 2CO2 + 2H20 4 -CCHA + 2O2 2CO2 + 2H20
Consider the balanced equation for the following reaction: 3O2(g) + 2CH3OH(l) → 2CO2(g) + 4H2O(l) If O2 is present in excess, determine the amount of CH3OH needed to produce 3.22 moles of H2O. A) 0.403 moles B) 1.49 moles C) 6.44 moles D) 2.18 moles E) 1.61 moles
Consider the following data: DeltaH (kj) Ca(s) + 2C(graphite)----> CaC2 (s) -62.8 Ca(s) + 1/2 O2 (g) -----> CaO (s) -635.5 CaO (s) + H2O(l) ----->Ca(OH)2 (aq) -653.1 C2H2(g)+ 5/2 O2(g)---->2CO2(g)+H2O(l) -1300 C(graphite)+ O2(g)---->CO2(g) -393.51 Use Hess' law to find the change in enthalpy at 25oC for this equation: CaC2(s)+2H2O(l)-----> Ca(OH)2 (aq)+ C2H2(g)
Which of the processes represented by the following chemical equations are exothermic?Choose one or more:A. $$heat+CaO(s)+3C(s)→CaC2(s)+CO(g)B. $$CH4(g)+2O2(g)→CO2(g)+2H2O(g)+heatC. $$CH3OH(g)+32O2(g)→CO2(g)+2H2O(g) ΔH=−676kJ/molD. $$2H2O(g)→2H2(g)+O2(g) ΔH=+483.6kJ/molE. $$I2(s)→I2(g)F. $$H2O(g)→H2O(l)
2. (10 pts) Given the following data Ca(s)2C(graphite)CaC2(s) -62.8 kJ OH635.5 Ca(s)1/202(g) CaO(s) kJ CaO(s)H20()- Ca(OH)2(aq) OH 653.1 kJ 2CO2(g)H2O(l OH1300 C2H2(g)5/202(g) kJ C(graphite) O2(g)CO2(g) H= -393.5 kJ calculateH for the reaction (show your work for full credit) CaC2(s)+ 2H20()- Ca(OH)2(aq) CH2(g)
Consider the following balanced equation: 3O2(g) + 2CH3OH(l) → 2CO2(g) + 4H2O(l) If 30.3 moles of O2(g) and 31.1 moles of CH3OH(l) are allowed to react to produce 15.0 moles of CO2(g), what is the percent yield of the reaction? a-57.5% b-74.3% c-48.1% d-85.0% e-70.2%
La Accessibility Mode 44) The formula Mg + CO2 + 02 - MgCO3 is balanced as: A) 2Mg + 2CO2 + O2 - MgCO3 B) 2Mg + 2C02 + O2 ► 2MgCO3 C) 2Mg + CO2 + 202 2MgCO3 D) Mg + 2CO2 + O2 - 4MgCO3 E) none of these 45) The formula C3H3 + O2 - CO2 + H2O is balanced as: A) C3H3 + O2 →2CO2 + 2H20 B) CzH3 + 02 - → 6CO2 + 8H20...
1. Write a balanced chemical equation for each reaction and identify it as a combination, decomposition or combustion. CsH120 + 02 -------> CO2 + H2O Ca + O2 -------> Cao C. Cu(OH)2 -------> CuO + H2O Al + Cl2 -- > AlCl3 2. What is the molar mass of Cas(PO3)2?
Consider the following balanced chemical equation: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) a. How many moles of CO2 form when 1.53 moles of C2H5OH react? moles CO2 b. How many moles of H2O form from the reaction of 1.53 moles of C2H5OH? moles H2O c. How many moles of CO2 form when 1.53 moles of H2O form? moles CO2 d. How many molecules of CO2 form when 1.53 moles of H2O form? × 10(Click to select)21222324 molecules CO2