Choose a balanced chemical equation for the reaction of molecular oxygen with beryllium metal to form the oxide. O 3Be(s)+O2(g) 3BEO(s) O Be(s)+202(g) 4BEO(s) O Be(s) +O,(g) BeO(s) O 2Be(s)+O2(g) 2BEO(s)

Q: MISSED THIS? Watch KCV 8.5, IWE 8.5; Read Section 8.6. You can click on the Review link to access…

A:

Q: a)Sodium thiosulfate, Na2S2O3, is used as a fixative in photography.  What is the oxidation number…

A: Oxidation state: It describes the extent of oxidation of an atom in a compound . It is an…

Q: What mass of oxygen will be produced by heating 400. g of potassium chlorate? KCIO3(s)->KCI(s)+02

A:

Q: chemistry balanced equations mg (s) + o2 (g) ➜ mgo5 (aq)

A: Balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: The energy diagram shown represents the chemical reaction between solid ammonium c octahydrate:…

A: The heat absorbed is to be calculated

Q: Using a mass of 1.70 g baking soda you started with initially, calculate the mass (g) of solid…

A:

Q: When the following molecular equation is balanced using the smallest possible integer coefficients,…

A: Balanced equation is equation in which number of atoms are equal in both reactant and product side.

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: The following reaction describes the production of elemental sulfur. Calculate the mass of elemental…

A: Given- Weight of dihydrogen sulphide =15.39 g  H2S(g)+O2(g) -> S8(s) + H2O(g)

Q: chlorine

A: according to the chemical reaction equation,  4moles of Cl2 react with = 1mol of CS2  1mol of Cl2…

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

A: For the net chemical  reaction we have to eliminate the intermediate.

Q: One of the key ingredients in certain cosmetics is Pb2Cl2CO3 and is created as shown in the reaction…

A: Given mass of CO2= 4.87 g  Given mass of H2O = 2.7 g  Given mass of NaCl = 0.46 g  Given mass of PbO…

Q: Balance the following chemical equation (if necessary) for the combustion reaction of propane:…

A: The combustion reaction of propane is given as, => C3H8 (g) + O2 (g) -------> CO2 (g) + H2O(g)…

Q: 17. Given the reaction Ss(g) + 802 8SO2(g), the number of moles of sulfur required to form one mole…

A: In the given reaction, one mole of S reacts with eight moles of oxygen to form eight moles of sulfur…

Q: Balance the following chemical equations and identify the type of chemical reaction:

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any…

Q: Balance the chemical equation in standard form. What is the sum of the coefficients? CaH2(s) +…

A: The chemical equation :  CaH2(s) + TiO2(s)  ---> Ti(s) + CaO(s) + H2(g)  Balance this equation in…

Q: For every one molecule of sodium azide that ignites, how many molecules of gas are formed?   2…

A: 2 NaN3(s)     ------------>  2 Na(s)     +    3 N2(g)

Q: Balance the following equations a) Ca,P₂(s) + H₂O(1)→ Ca(OH)₂ + PH3 b) Al,C, (s)+ H₂S(g) → CH.(g) +…

A: Balance chemical equation can be define as a reaction in which number of atoms of all the elements…

Q: Balance the following chemical equation (if necessary): C:H«(g) + O2(g) –→ CO:(g) + H2O(g)

A: Balanced equation means number of atom in reactant side is equal to number of atom in product side.…

Q: Gaseous water (H₂O) and solid calcium oxide (CaO) are formed by the decomposition of solid calcium…

A: A chemical reaction in which a single reactant breaks down into two or more products is called a…

Q: How many grams of nickel (III) chloride can be formed from 25.85 grams of solid nickel?

A: Recall the reaction to obtain nickel(III) chloride from solid nickel…

Q: mass in grams of phosphorus trichloride

A:

Q: Using a mass of 5.48 g baking soda you started with initially, calculate the mass (g) of solid…

A:

Q: suppose a student reacts 1.57 g Ca with O2 gas. In his/her calculations however S/he mistakenly…

A: Theoretical yield is defined as the amount of product formed assuming the reaction efficiency to be…

Q: What is the maximum possible yield (in grams) of the NaN3?

A: Number of moles = mass/molar mass  Ideal gas equation;-  PV= nRT  Molar mass of NaN3 = 65.009 g/mol…

Q: Balance the chemical equation below using the smallest possible whole number stoichiometric…

A: A chemical reaction follows the law of conservation of mass. According to the law of conservation of…

Q: A flame test was carried out on solid sodium carbonate. The flame colour will be A Red O B Lilac C…

A: Sodium carbonate : NaHCO3

Q: The chemical equations below show reactions similar to those you have met already. One of them is…

A: One of them is balanced correctly, and three are not. Identify which one is correctly balanced.…

Q: Balance the following chemical equation (if necessary):    C5H10(g)O2(g) -> H2O(g)+CO2(g)

A: Balance the following chemical equation (if necessary):

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.