Write the balanced equations by predicting the products of the following reactions. Include the physical state of each element or compound. The combustion of sodium and oxygen gas to form sodium peroxide ( peroxide ion is O22-)

Q: The total of electrons lost that is equal to the total number of electrons gained in the balanced…

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Q: 8. The illustration to iodine ( purple )a molecules.

A: That reactant in any chemical reaction when limits the amount of product being formed, is limiting…

Q: Complete the ionization reaction of Cr2 (S04)3. • Cr,(S04)3→ Calculate the molar mass of Cr2(S04)3 (…

A: Ionisation Reaction Ionisation or ionisation reaction is a process by which a molecule splits into…

Q: Aluminum 13 (AI)_ 13 Hydrogen (H) 1 1 Making anion Sulfur (S) 16 16

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Q: Using the hypothetical activity series below, write the balanced chemical reaction for each pair of…

A: NOTE: Since the reactivity order is not given clearly in the activity series, I'm assuming its in…

Q: Which of the following metals is least chemically reactive?  potassium  sodium  iron  magnesium…

A: The reactivity of s block metals are very high due to presence of just either 1 or 2 electrons in…

Q: The total weight of a mixture containing CaO and BaO is 0.6411 g, and the weight of anhydrous…

A: The total weight of CaO and BaO is 0.6411 g. The total weight of anhydrous sulphate salts obtained…

Q: Assuming a Alka-Seltzer tablet weighs 2390 g and a fragment used in a experiment weighed 0.2500 g…

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Q: How many grams of iron are needed to combine with 24.6 g of O to make Fe2O3?

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Q: Which pair of elements would you expect to exhibit the greatest similarity in their physical and…

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Q: 2. Balance the following equations (in the formation of heavier elements). a.*He +He - Be b. “He +n…

A: Given nuclear equations are :  a). 4He + 4He -----------> Be  b). 4He + n -------------> 4He…

Q: Write the following equations for Al2(SO4)3(aq) and Pb(NO3)2(aq). Include the states of matter in…

A: In a double displacement reaction, two ionic compounds exchange their constituting ions between each…

Q: Provide the formulas of the following written compounds, write out the equation and balance this…

A: Given Nitrogen dioxide + Nitrogen monoxide + water → Nitrous acid    formulas of the following…

Q: What is the chemical formula for iron(II) phosphid

A: A compound's chemical formula is a symbolic representation of its chemical makeup. Chemical…

Q: Complete the following chemical equations.a. Na(s) + H 2 O(l) →b. K(s) + H 2 O(l) →

A: The complete chemical equation has to be given.

Q: How many grams of magnesium are required to produce 4.380 kg of Si? (At mass: Mg324.31: Si-28.09)…

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Q: 13 What is the mass of carbon which reacts with 223 g of lead oxide? 2PBO + C 2Pb + CO, 6 g 12 g 24…

A: 1 mole of a substance is equal to its atomic mass or molecular mass expressed in grams. The atomic…

Q: Calculate the percentage composition for BF3. Mass percentage of boron %3D Mass percentage of…

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Q: Why is it important, in carbon dating, to consider the ratio of carbon-14 atoms to other carbon…

A: Applying carbon dating principle i.e . ratio of C-14/ C-12 . As shown my handwriten solution.

Q: How much orygen is produced from 2.56 X 10 g HgO?

A: Number of moles = mass/molar mass  Mass = moles × molar mass  Molar mass of HgO = 216.59 g/mol…

Q: 3. Illustrate 3 physical properties and 3 chemical properties of Calcium element.

A: Physical properties are those which can be measured, and any change made in physical property can be…

Q: 1.Aluminum reacts with oxygen to produce aluminum oxide (Al203). The balanced chemical equation for…

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Q: When vinegar and baking powder is mixed. . forms. O A) Oxygen gas O B) Carbon dioxide O C) Sodium…

A: Solution Take saleratus and vinegar, as an example. compounding those 2 ingredients can get you a…

Q: Consider 8.63 x 1021 atoms of boron.   How many moles of boron does this represent?

A: 1 mol of atom  = Avogadro's number

Q: How many grams of magnesium are required to produce 4.380 kg of Siı? (At mass: Mg-24.31; Si-28.09)…

A: Recall the given reaction,  SiCl4  +  2 Mg                   Si  +  2 MgCl2   4.380 Kg of Si is…

Q: What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl =…

A: Molarity (M) : Number of moles of solute present in 1 litre solution is called molarity (M)…

Q: Unit 9: Compounds - PS How many atoms of aluminum (Al), sulfur (S), and oxygen (0) are in each…

A: Given compound has molecular formula , Al2(SO4)3

Q: Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of…

A: Coal contains carbon and other elements. Coal when burnt with oxygen then formation of carbon…

Q: Give the formula for the following compounds. 1. Nitrous acid 2. Manganese (1I) phosphate 3. Silver…

A: Since the question contains multiple parts, by default we can answer only first three parts. Please…

Q: You have 3.31 L of water that contains 25 mg/L of PO43-. What is the total amount of phosphate in…

A: • The values provided in the question are:-    i) Density of phosphate ion solution,d  = 25 mg/L…

Q: Complete the following equation for the preparation of this new element:?+24998Cf→294118Og+310n

A: Given,? + 24998Cf → 294118Og + 310nThe element symbol, atomic number and mass number can be written…

Q: Ammonia can be prepared by the reaction of magnesium nitride with water. The products are ammonia…

A: Ans. Molecular equation for the reaction of magnesium nitride with water Mg3N2 +…

Q: A sample of gas mixture from a neon sign contains 3.48 x 10-4 mol Ne and 1.12 x 10- mol Kr. What are…

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Q: Which chemical equation represents a O Caco:(s) –→ Ca0(s) + CO:(g) CaO(s) + CO:(g) O Ca0(s) +…

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Q: A sample is found to contain 63.65% nitrogen and 36.35% oxygen. What is its chemical formula? O N20…

A: Emperical formula can be determined from the % of different elements present in a molecule. If…

Q: Identify the scientific law that is used in the process of balancing chemical equations. the law of…

A: 1. Given that : We have to identify the scientific law that is used in the process of balancing…

Q: How many moles of magnesium chloride are needed with 15 moles of aluminum? * 3MGCI2 + 2Al - 3Mg +…

A: Given: Moles of Al = 15 moles

Q: 70 ml of 0.3 normali (sulfuric acid) was taken to prepare 60 ml of sulfuric acid solution. What is…

A: Introduction: For the preparation of dilute solution from a stock solution, we can use the following…

Q: Chemical properties of oxygen

A: The chemical symbol of oxygen element is ''O''. The position of the oxygen (O) atom in modern…

Q: the complete decomposition of 1.0 gram of potassium chlorate gives potassium chloride and oxygen…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of…

A: When coal burn there is a chemical reaction takes place. It is a chemical reaction. It's best…

Q: how many atoms per particle in sulfur(s8)?

A: Atomic mass of sulfur = 32g Molecular mass of S8 =8×32=256g

Q: In a chemical reaction, atom type, atom number and total electrical charge is conserved. According…

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Q: Identify the principle component(s) of the essential oil from mustard. Determine the chemical and…

A: Mustard essential oil or volatile oil of mustard is an essential oil. It is mainly extracted from…

Q: hydrogen peroxide → water + oxygen List two physical / chemical properties for each compound

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Q: A researcher wants to experiment with an element that reacts like phosphorus (P) but has a greater…

A: Phosphorous is a 15 group element. The atomic number of phosphorous (P) is 15 and its atomic mass is…

Q: 7. A 25.75 g sample of a nitrogen oxide was found to contain 6.68 g nitrogen and the rest oxygen.…

A: Problem 7 % Weight of an element in a compound = 100 x Weight of element/Weight of compound Weight…

Q: As indicated in the label of liquid an antacid and stomach relief medication, a 20.0 mL dose…

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Q: 8+83= %3D Oxygen Carbon %3D

A: Combination reaction: A combination reaction is a type of chemical reaction in which two reactants…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.