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- For items 1-3, refer to the equation: CH4(g) + 2O2(g) → 2H2O(l) + CO2(g), with ΔH equal to -809.94 kJ/mol.1. Is the reaction heat-producing (exothermic) or heat-absorbing(endothermic)?2. How many moles of liquid water (H2O(l)) will be produced upon combustion of 3 moles of methane gas (CH4(g))?3. Calculate the ΔH if 5g of methane gas was combusted.For the following items, choose the letter of the correct answer. Write it on your answer sheet in ALL UPPERCASE letters. 4. A process in which there is no thermal energy exchanged between a system and its surroundings is called a/an:a. isothermal process b. isobaric processc. diathermic process d. adiabatic process5. According to Hess’ Law, the amount of energy expenditure for the same end-product will vary dependent on the number of steps.a. Statement above is true.b. Statement above is incorrect.c. Statement above is indeterminate.d. Statement above lacks varied data to make a judgement. Please answer all the questions.For items 1-3, refer to the equation: CH4(g) + 2O2(g) → 2H2O(l) + CO2(g), with ΔH equal to -809.94 kJ/mol.1. Is the reaction heat-producing (exothermic) or heat-absorbing(endothermic)?2. How many moles of liquid water (H2O(l)) will be produced upon combustion of 3 moles of methane gas (CH4(g))?3. Calculate the ΔH if 5g of methane gas was combusted.Butane, C4H10, burns to completion with 110% theoretical air.4.1) What is the actual air-fuel ratio on mass basis.4.2) What is the actual air-fuel ratio on mole basis. 4.3) What is theoretical air-fuel ratio (mass basis)4.4) What is theoretical air-fuel ratio (mole basis) 4.5 Determine the equivalence ratio.
- Use the web to determine the differences in the amounts of aluminum recycled in states where there are deposits on aluminum cans versus states where recycling is voluntary. What is the most reliable way to estimate this value? mat uncertainty is there in the estimate?Suppose i want to prepare 1 litter(1000 gram's) of bike and car washing shampoo, now what percentage of Sodium bicarbonate and preservatives i should use? Please answer at your own words.Balance, what is he coefficient in front H2SO4?
- Consider this given balance the reaction for the combustion of propane. C3H8(g)+5I2(g)=3CO2(g)4H2O(g) If I gave you moles of C3 H8 and wanted you to calculate moles to steam watch more ratio would you useWhich element in the periodic table has an specific heat of 0.099 with the lowest percentage errorBalance & calculate ΔH°(tot) from ΔHf°’s in T6.5 and listed below: __NH3(g) + __O2(g) → __NO(g) + __H2O(g) ΔH°(tot) = ____kJ
- 1. Balance the following chemical equation: Fe2O3 + CO ------> Fe + CO2, answers are listed in order - 1st coefficient, 2nd coeficient, etc. and so on. (1st one is in front of Fe2O3, 2nd one in front of CO, etc. and so on) Group of answer choices a) 1,3,3,2 b) 2,3,2,3 c) 1,3,2,3 d) 1,2,2,2Sum of coefficients C7H8 + O2 --> CO2 + H2O after balancingBALANCING EQUATION 3. _ MgF2 + _ Li2CO3 --> _ MgCO3 + _ LiF 4. _ Pb(OH)2 + _ HCl --> _ H2O + _ PbCl2 5. _ Na3PO4 + _ CaCl2 --> _ NaCl + _ Ca3(PO4)2 TYPEWRITTEN ONLY PLEASE FOR UPVOTE. DOWNVOTE FOR HANDWRITTEN.