7,8,9 Please write out equation step by step Law of conservation of mass within a chemical Equation

Q: Change 1.25 x 10^25 atoms of yttrium into moles of yttrium

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Q: Determine if the following statements are true or false. _____ 1. Water decomposes when an electric…

A: 1. Passing of Electric current results in dissociation of water into Hydrogen and oxygen. So, it is…

Q: Stoichiometry is best defined as the qualitative relationship between reactants and products in a…

A: The term stoichiometry is used in respect of chemical reactions. Stochiometric is derived from a…

Q: Is this chemical equation balanced? Na + CI → NaCI O Yes - it is balanced O No - it is unbalanced

A: Given reaction,      Na + Cl  → NaCl

Q: What is the difference between a reactant and a product?

A: The substance that is present left side of the arrow in a chemical reaction are called reactant and…

Q: Balanced chemical equations relate reactants and products by what quantity?

A: Concept Introduction: Balanced chemical equation gives the details about the identities (moles) of…

Q: Consider a reacting mixture consisting of 5 molecules of oxygen and 2 molecules of hydrogen reacting…

A: The question is based on stoichiometry  of a reaction highlighting concept of limiting reagent. A…

Q: → products) (Don't forget • If there is reaction, write a complete chemical equation (reactants to…

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Q: Ethanol has a molecular formula C2H5 A sample of ethanol has a mass of 2.3 grams. The sample was…

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Q: Balanced chemical equations contain important information about the amount of reactants required to…

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Q: What do you call the mass of one molecule of a substance?     Mass Number   Atomic Number   Molar…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: If you burn 40 g of oil and produce 30 g of carbon dioxide, what is the total mass of all the…

A: In the case of combustion of hydrocarbon, for example, methane, when the 1 mol of methane is burnt,…

Q: Translate the following balanced chemical equation into word equation. 3NiSO4 + 2Li3PO4…

A: In balanced reaction the number each atom on reactant side is equal to number of each atom on…

Q: Run 1 Run 2 Mass of dry calorimeter, (g) 129.37 135.45 Molarity of the standard HCl, (M) 2.959…

A: Calculation for Run 1 : a) average temperature of HCl and NaOH :  Ti  = 22.04+22.722    = 22.38oC b)…

Q: fill in the blanks to properly balance this equation  __Agl+ __Na2S= __Ag2S+ __NaI

A: We are to balance the given equation  __Agl+ __Na2S= __Ag2S+ __NaI We will use simple hit and trial…

Q: 18.6 mL of ethanol is allowed to undergo combustion with an excess of gaseous oxygen to produce…

A: Given;

Q: If you rewrite the following word equation as a balanced chemical equation, what coeffi- cient would…

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Q: Write a balanced molecular equation describing each of the following chemical reactions. You may use…

A: Water vapour is the water in a vapour state, thus the phase of water vapour is gas. Sodium is an…

Q: List the reactant(s) for the following chemical equation: Mg(s) + O2(g) → MgO (s) O Mg MgO 02 Mg and…

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Q: The products of the complete combustion of octane, C8H18, are carbon dioxide and water. Write a…

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Q: How much energy is released in the formation of 612 g of PCl3 (137.32 g/mol), according to the…

A: From the given reaction we can say that when 4 moles of PCl3 is formed, energy released in the…

Q: How is a balanced chemical equation always similar to a recipe? Both show the ideal temperature for…

A: "A balanced chemical equation is very similar to a recipe." A balanced chemical equation gives us…

Q: Balance the following chemical equation using the smallest, whole- number coefficients: Al + HCI →…

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Q: The following quantities are placed in a container: 1.5 × 1024 atoms of hydrogen, 1.0 mol of sulfur,…

A: Given data: No of atoms of H in container = 1.5×1024 atoms Mole of Sulphur present in container =…

Q: Consider the mixture of Cl2 and F2 in a closed container as illustrated below. What will the…

A: The reaction taking place is given as, => Cl2(g) + 3 F2(g) → 2 ClF3(g)

Q: Automobile airbags inflate due to the formation of nitrogen gas from the chemical reaction 2 NaN,…

A: To solve this problem we will use the given balanced chemical equation .

Q: Select the lowest possible whole number coefficients that balance the chemical equation. Then…

A: Answer:- This question is answered by using the simple concept of balancing the chemical equation in…

Q: For each chemical reaction identify in the chart:   The evidence of chemical change.   The type of…

A: A balanced chemical reaction is a reaction in which the total number of atoms at the reactant and…

Q: Ahtractivity Understand x ← CO POCPS New Tab Oumany Diallo - Pr.... <Exit Interactivity:…

A: We have to work here using stoichiometry .

Q: What is the sum of coefficients from the following reaction (both products and reactants)? X(OH)2 +…

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Q: Bar folder. Or import from another browser. Import favorites Write a balanced equation describing…

A: The balanced chemical equation can be described as the type of the equation in which the number of…

Q: Translate the following sentences into balanced chemical reaction equations. Nitrogen reacts with…

A: The balanced equation can be defined as the chemical equation in which the number of each atom on…

Q: Fill in the coefficients (include a 1 where appropriate or just put a single space) to balance this…

A: A balanced chemical equation is the type of equation in which equal number of elements are present…

Q: Zinc metal and hydrochloric acid react together to produce hydrogen gas and water(H2O). What is the…

A: Zinc (Zn) metal and hydrochloric acid (HCl) react together to produce hydrogen gas (H2) and…

Q: Successively heating a sample yielded the following data. When the student  disposed of the sample…

A: In this case, it is likely that the product began to burn. The oxygen from the atmosphere binding to…

Q: Students can develop alternative conceptions (commonly called misconceptions) in relation to some…

A: We begin with a balanced chemical equation of the given chemical equation: 8Fe+S8→8FeS

Q: 40.0g of KClO3 is subjected to heat until it decomposes entirely. Determine the theoretical yield of…

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Q: Q11 (A) Describe any 4 types of chemical reactions. Write one example for each type. Q11 (B)…

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Q: Fill in the coefficients (include a 1 where appropriate or a single space) to balance this chemical…

A: 2Na   +  2H2O  --&gt;  H2   +  2NaOH Blank 1   - 2 Blank 2     -2 Blank 3      -1 Blank 4      -2

Q: The figure shows the reaction of element A ( lavender spheres) with element B ( tan) write the…

A: Stoichiometry of a reaction tells about number of mole of reactants reacts with each other forming…

Q: Liquid heptane, C7H16, burns in oxygen gas to yield carbon dioxide and water. What is the minimum…

A: Combustion reaction of heptane with oxygen : C7H16 + 11O2 .....&gt; 7CO2 + 8H2O Volume of heptane =…

Q: (0); B 1. CO, 125 °C 2. H₂O₂, OH- 1. CO, H₂O, 125 °C 2. H₂O₂, OH-

A: Trialylborane react with CO and followed by oxidation with H2O2 to give carbonyl compounds.

Q: Write a balanced chemical equation when solid barium carbonate decomposes into solid barium axide…

A: The chemical formulas are as given below: Barium carbonate = BaCO3 Barium oxide = BaO Carbon…

Q: Less than 1 minute DRILLS: Compute for the masses of the following chemical equations: 1. 2Mg 2MGO…

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Q: Reaction Type:_ At completion of reactions: Grams of methane Grams of oxygen Grams of carbon dioxide…

A: We need to write the mass of reactants and product after completion of reaction.

Q: add numbers to balance this chemical equation _____ C10H22 + ______O2 -->______ CO2 + _______ H2O

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Q: A 3.20-mol sample of aluminum represents how many atoms? 1.93 x 10^24 atoms 5.31 x 10^-24 atoms…

A: One mole of a substance contains Avogadro's number (6.023 × 1023 ) atoms of that substance. The…

Q: In order to make a chemical equation balanced you must count the atoms in the reactant of the…

A: A balanced equation has equal number of atoms of same elements on both the sides of the chemical…

Q: Reaction 1. A tablespoon of sugar when heated melts, darkens, and finally burns 2. Burning of wood…

A: Chemical changes occur when a a substance combines with another to form a new substance .These…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.