10.) Balance the following equation. When balanced, what is the coefficient in front of carbon dioxide? C2H2 (g) + O2 (g) --> CO2 (g) + H2O (l) + energy A) 2 B) 4 C) 5 D) none of the above
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10.) Balance the following equation. When balanced, what is the coefficient in front of carbon dioxide?
C2H2 (g) + O2 (g) --> CO2 (g) + H2O (l) + energy
A) 2
B) 4
C) 5
D) none of the above
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- Please find the CO2 amount and show the calculation: Air composition (apprx) = 80% N2 and 20% O2 (mol basis only)Average molecular weight of Air = (0.8 x 28 + 0.2 x 32) = 29 g/mol (apprx) Math Sample:2kg pure charcoal (12C) is to be burnt completely with air. Find the air, CO2 andN2 amount in kg’s.Solution:C + O2 = CO2 (you must use a balanced equation)Therefore from the mole ratio of the reaction we write,C : O2 : CO2 = 1:1:1and from air composition we gotO2 : N2 : Air = 1:4:5 Given, 2 kg C = 2000 g/ (12 g/mol) = 166.67 mole CTherefore, similar mole of O2 required. So equivalent Air supposed to be 5times than the mole amount of O2 and released N2 will be 4 times than therequired O2. Therefore, Air amount = 5 x 166.67 moles= 833.34 moles= (833.33x29/1000) kg= 24.17 kg air Similarly N2 released amount will be = (166.67 x 4 x 28/1000) kg = 18.67 kgFind CO2 amount by yourself! (Isn’t it 7.34 kg?)What is the coefficient (number in front) for CO2 when C3H8 + O2 --> CO2 + H2O is balancedGive only typing answer with explanation and conclusion Balance the following equation 653 kJ + PCl3 ---> P + Cl2
- 18.2 Balance the following chemical equation for the stoichiometric combustion of methane with oxygen. ____ CH4(g) + ______O2(g) ⟶ ______ CO2(g)+ ______H2O(g) What are the coefficients for O2(g) and CO2 (g)?A sample of an industrial waste water is analyzed and found to contain 16.5ppb Fe2+. How many grams of iron could be recovered from 1.81×103 kg of this waste water? Answer:_______ grams FeWhen the equation? PbS+? O2 →? PbO+? SO2is balanced, the coefficients are
- A cork popper. To entertain children between the ages of 2 and 90, Daniel Harris enjoys popping corks from bottles containing vinegar and baking soda. He pours about 50 mL of vinegar into a 500‑mL plastic bottle. Then, he wraps about 5 g of baking soda (which is sodium bicarbonate, NaHCO3 in one layer of tissue and drops the tissue into the bottle. He places a cork tightly in the mouth of the bottle and steps back. The chemical reaction generates CO2(g) that pressurizes the bottle and eventually bursts the cork into the air. Everyone smiles. CH3CO2Hacetic acid in vinegar+NaHCO3sodium carbonatein baking soda⟶CH3CO−2+Na++CO2(g)+H2O Find the formula mass of acetic acid and of sodium bicarbonate. acetic acid formula mass: 60 g/mol sodium bicarbonate formula mass: 84 g/mol How many grams of acetic acid are required to react with 6.91 g of NaHCO3? mass of acetic acid: 4.94 gAircraft de-icing agents, such as propylene glycol [1,2-propanediol; CH₃CH(OH)CH₂OH; d=1.036 g/mL], are used toremove ice and snow prior to winter flights, but their presence inrunoff depletes O₂ in natural waters. (a) Write a balanced equa-tion for the complete oxidation of propylene glycol by O₂.(b) What is the “theoretical oxygen demand,” in grams of O₂ required per gram of propylene glycol oxidized? (c) What is thetheoretical oxygen demand, in grams of O₂ required per liter ofsolution, of 90.0% by volume aqueous propylene glycol?A cork popper. To entertain children between the ages of 22 and 90, Daniel Harris enjoys popping corks from bottles containing vinegar and baking soda. He pours about 50 mL of vinegar into a 500‑mL plastic bottle. Then, he wraps about 5 g of baking soda (which is sodium bicarbonate, NaHCO3) in one layer of tissue and drops the tissue into the bottle. He places a cork tightly in the mouth of the bottle and steps back. The chemical reaction generates CO2(g) that pressurizes the bottle and eventually bursts the cork into the air.
- Please view the video* below and answer the following questions.https://www.youtube.com/watch?v=1ocQhkHw_MM1. Two reactions were demonstrated in the video above. Write the balanced equations for both reactions below.a.b.2. What catalyst was used in the decomposition of hydrogen peroxide?3. Which safety rule is broken during the demonstrations shown in this video?4. View the video and complete the table below.https://www.youtube.com/watch?v=_G7sNq7R29w Observations Balanced Reaction Equation 5. View the video and complete the table below.https://www.youtube.com/watch?v=yLsjsy_Dqd0 Observations Balanced Reaction EquationHow do I balance the following equation? C+H2O→CO2+CO+H2What is the product of the following reaction equation after balancing? If no reaction state that " NH4CI(s)+ H2O---->