Demonstrate the Law of Conservation of Mass. Balance equation, work problem, and answer the multiple choice question. SnO2 C. --> Sn CO What is the total mass of the reactants; What is the total mass of the products? O 163g; 147g 163g; 163g 147g: 147g 175g: 175g 1 pts

Q: An unknown pentahydrate salt is known to release water when heated according to the following…

A: Given: Mass crucible = 24.3365 g Mass crucible + hydrate = 29.6115 g Mass crucible + residue after…

Q: a) Balance the equation b) __?__ mol HgO produced (this is the theoretical yield of mol HgO) c)…

A: Before doing the problem at first  we should balance the chemical reaction  2HgO(s) = 2Hg (l) +O2…

Q: Carbon monoxide reacts with hydrogen gas to from methanol (CH3OH). If 10.0 g of carbon monoxide and…

A: Given -> Weight of CO = 10.0 gm  Weight of H2 = 10.0 gm

Q: balance the following unbalanced chemical equation showing the combustion of methane use 1 for…

A: Given that, Combustion of methane i.e., _CH4 + _ O2 ---------> _CO2 + _H2O Write balanced…

Q: balance there heat of reaction 2H2S(g) + 3O2(g) → 2SO2(g) + 2H2O (g)

A: Balance reaction means there is total no of atoms should be equal on both side in the reaction  So…

Q: The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine…

A: Sulfur dioxide reacts with oxygen to form sulfur trioxide. The equation for the balanced chemical…

Q: What mass of H₂O (in grams) is produced from 0.68 g O₂ with excess H₂ in the following reaction? The…

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Q: Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, and hydrogen…

A: The amount of product formed in a reaction is expressed in terms of percentage known as yield of the…

Q: Given the following three sequential reactions: 1) N₂(g) + 3H2(g) → 2NH3(g) 2) 4NH3(g) + 5O2(g) →…

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Q: .In a lab setting, a student obtained 9.60 g of AgCl from the reaction listed below. The student…

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Q: balance the following unbalanced chemical equation showing the combustion of methane use 1 for…

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Q: These images show equal moles of So2 gas and o2 gas about to be mixed to form So3. 8. Assuming the…

A: Given : Some statements regarding the reaction between sulphur dioxide and oxygen to form sulfur…

Q: Balance this equation: _UO2(s) + _ HF(t) → _ UF4(s) +_ H2O(t) - Though you would not normally do so,…

A: The given equation is: UO2 (s) + HF (l) → UF4 (s) + H2O (l) A balanced equation has equal number of…

Q: How many moles of KCIOs solid must be reacted according to the following balanced chemical reaction…

A: Answer: In this question we have to find out the mass of reactant required to produce given amount…

Q: Classify each of the following reactions as a combustion, decomposition, combination, or other.…

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Q: Equation 3 CO CO 8 8 2H₂ Reactants Number of hydrogen atoms Number of oxygen atoms 0₂ 80 2H₂0…

A: Given equation: 2H2 + O2 → 2H2O We have to find the number of hydrogen and oxygen atoms on both…

Q: Balance this reaction:_Fe2O3(s) +_Co(g)->_fe(s)+_Co2(g)

A: According to the Law of Conservation of mass " all atoms of different elements must be equal on both…

Q: Which is a sign of a chemical change? A) Ice cream left at room temperature melts. B) Calcium…

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Q: 4. A 22.4 g sample of oxygen gas is placed in a sealed container with 2.50 g of hydrogen gas. The…

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Q: Given 15.0g HgO and the following unbalanced equation, complete a-f. ___HgO (s) → ___Hg (l) + ___O2…

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Q: Consider the following reaction: 2CH3OH(g) + 302 (g) →2CO2(g) + 4H,O(g) Each of the following…

A: Balanced chemical reaction is given by, 2CH3OH(g)+3O2(g)→2CO2(g)+4H2O(g)

Q: The excess reactant will determine the potential maximum amount of products formed in a reaction…

A: There are mainly two types of reactants are present in the reaction: Limiting reactant: The reactant…

Q: What is the limiting reagent? Limiting Reagent and Yields Determine the limiting reagent,…

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Q: Actual yield is the calculated amount of product that is possible to obtain from a reaction.…

A: The solution is as follows:

Q: Refer to this equation:  3SCl2 + 4NaF  --> SF4 + S2Cl2 + 4NaCl  64.0 grams SCl2 is reacted with…

A: Given chemical equation:  3SCl2 + 4NaF  --> SF4 + S2Cl2 + 4NaCl  Number of moles =(given…

Q: In the unbalanced chemical equation shown above for the combustion of ethanol, what least common…

A: While balancing a chemical equation, it is important to observe that the number of atoms on the…

Q: What is the sum of coefficients from the following reaction (both products and reactants)? X(CO3)3…

A: Heating of any carbonate generally forms oxide and carbon dioxide gas.

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.