Choose the letter of the correct answer. 1. Silicon carbide, an abrasive, is made by the reaction of silicon dioxide with graphite. SiO2 + 3C → SiC + 2CO If 100 g of SiO2 and 100g of C are reacted as far as possible, which one of the following statements will be correct? A. 111 g of SiO2 will be left over. B. 44 g of SiO2 will be left over. C. 40 g of C will be left over. D. Both reactants will be consumed completely. 2. How many grams of Ag2CO3 are required to react with 28.5 mL of 1.00 M NaOH solution? Ag2CO3 + 2NaOH → Ag2O

Q: The use of freons is being phased out because of the damage these compounds do to the stratospheric…

A: a.

Q: Question 8: For sugar (C12H22011), what is the percentage of carbon, hydrogen and oxygen in the…

A: 8.  molecular formula of sugar = C12H22O11 Number of oxygen atoms in Sugar = 11 Number of carbon…

Q: According to the chemical equation below, how many grams of Aluminum are needed to produce 15.0g of…

A:

Q: If 1.5 moles of oxygen gas combines with solid aluminium to form Al203, what is the mass of…

A:

Q: Using your reaction page, predicte the products and balance the reation. Number would go in front of…

A: When an acid reacts with a base it produces salt and water. Such reactions are known as acid-base…

Q: Nitric oxide (NO) is made from the oxidation of ammonia (NH3) based on the BALANCED equation: 4…

A: The given balanced equation is- 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) As per this equation, 4…

Q: Chlorine gas , water , and Manganese ( II ) chloride can be produced in the lab by adding…

A:

Q: a. How many ATOMS of boron are present in 7.41 grams of boron trichloride? 3.805x10^21 atoms of…

A: Molecule given = BCl3 1 molecule of BCl3 = 1×6.022 ×1023 Molar mass of BCl3 = 117.3 g/mol 117.3 g of…

Q: 2NaCl + 1 Br2 → 2 NaBr + 1 Cl2     How many moles of NaCl are there in 99 grams of NaCl?  If you…

A: a) Given, Given mass of NaCl = 99 grams b) Given, Amount of NaCl is 31 grams c) Given, Amount of…

Q: 1. Methanol can be produced  by the reaction between carbon monoxide and hydrogen. Suppose 68.5 kg…

A: Answer: This question is based on stoichiometry of the reaction where compounds always react in the…

Q: For the following chemical reaction,                                             N2 (g) + 3 H2 (g)…

A: Limiting reagent is the reactant that is completely consumed in the reaction.  therefore limiting…

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

A:

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A: Given, 2PbS + 3O2 ---------->  2Pb + 2SO3 mass of PbS react = 2.54 g mass of O2 react = 1.88 g…

Q: 32. Consider the following reaction P4(s) + 6 F2(g) 4 PF3(g) n a laboratory experiment, 100. g of F2…

A: Given, Balanced reaction P4(s)+6F2(g)→4PF3(g) mass of F2=100.0 g mass of P4=60.0 g

Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂ (g) → 4 PCl₃ (g)

Q: P4(9) + 6CI2(g) –→ 4PCI3(g) 8.02 L of P4(g) is mixed with 10.4 L of Cl2(g) and reacts with 100%…

A: % Yield = 100 %  Volume of P4 (g) = 8.02 L  Volume of Cl2 (g) = 10.4 L As, 22.4 L of gas contains 1…

Q: According to the chemical equation below, how many grams of Aluminum are needed to produce 15.0g of…

A:

Q: What mass of AlCl3 can be produced?

A:

Q: B How may oxygen atoms are in 225 g of oxygen gas? 4.23 x 102+ b. 6.84 x 10²4 8.47 x 10²4 1.69 x…

A: To calculate the number of oxygen atoms in 225 g of Oxygen gas.

Q: Silane, SiH4, is prepared according to the following equations: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +…

A: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +  H2(g) 4 HSiCl3(l)  →  SiH4(g)  +  3 SiCl4(l)  2.42 moles of…

Q: Combustion of a hydrocarbon in a limited supply of air produces CO in addition to CO₂ and H₂O. When…

A: Combustion of 2.33 g of a hydrocarbon C2H5 in air produces 2.24 g CO, 3.53 g CO2 and 3.61 g H2O…

Q: The following reaction is known as the Haber Process. It is commonly used to make ammonia (NH3) for…

A:

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

A: We have to balance the given reaction

Q: The following reaction can be used to convert carbon dioxide to oxygen gas. 4 KO2 (s) + 2 CO₂(g) → 2…

A: The balanced chemical reaction given is4 KO2 (s) + 2 CO2 (g) →2 K2CO3 (s) + 3 O2 (g)

Q: Can someone please help me out on this one on what to put on the boxes . I’m unsure on what my…

A:

Q: A mixture of C2H2 and CH4 has a total mass of 251.8 g. When this mixture reacts completely with…

A: Given:Total mass of mixture of C2H2 and CH4 = 251.8 g.Total mass of CO2 and H2O = 1138.0 g.Molar…

Q: 2XO3(g) → 2XO2(g) + O2(g) a. In the box on the right, draw the content of the sample after the…

A: The balanced chemical equation shows the relationship between the number of moles of reactants and…

Q: Coal is a leading source of energy for the world. While coal is primarily composed of carbon and…

A: Given:S(s)+O2(g)→SO2(g)

Q: Silane, SiH4, is prepared according to the following equations: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +…

A: 1 mole of any substance have 1 Avagadro number molecules  1 Avagadro number molecules = 6.023*1023…

Q: An unknown compound contains only carbon, hydrogen, and oxygen (C„H,O;). Combustion of 7.00 g of…

A: Given: Compound contains only C, H and O. Mass of compound combusted = 7.00 g. Mass of CO2 produced…

Q: Given: NaBr + Sn(NO3)2 --> NaNO3 + SnBr2 a. When this equation is balanced, what is the sum of the…

A: NaBr + Sn(NO3)2 --> NaNO3 + SnBr2 To get the Balanced chemical equation , we have to add the…

Q: Consider the incomplete combustion of methane, CH₁. CH4 (g) +2 0₂ (g) → CO₂ (g) + 2 H₂0 (1) (Ch. 2)…

A: Given -> Weight of CH4 = 16 gram  Weight of O2 = 64 gram

Q: Calculate the mass in grams of aluminum iodide (All3) when 23.40 g of aluminum (Al) reacted…

A:

Q: 8. To obtain pure lead, lead (II) sulfide is burned in an atmosphere of pure oxygen. The products of…

A: Here lead sulphide reacts with oxygen to give lead and sulphur trioxide.

Q: Given the equation below, what mass, in kilograms, of N2(g) is produced when 10.00 kg of Pb(N3)2(s)…

A: From the above reaction we can say that  moles of Pb(N3)2 reacting X 3 = moles of N2 produced  this…

Q: How many grams of O2 are needed to form 7.35moles of Fe203? 4 Fe + 302 → 2 Fe203 Round your answer…

A: Such problems are solved by using the mole concept. The mole concept relates the number of moles…

Q: A 20.0-gram sample of impure NaClO3 produces 4.72 L of oxygen (STP). What is the percentage purity…

A: Percentage purity can be calculated by back calculation of the amount of O2 should be produced.

Q: Consider the following reaction:  4 Al + 3 O2 →  2 Al2O3 A mixture of 82.5 g of aluminum and 117 g…

A:

Q: Consider the double replacement reaction between calcium nitrate (Ca(NO3)2) and sodium (Nal). If…

A: Given double displacement reaction:   Ca(NO3)2  + 2NaI   ----->   CaI2  + 2NaNO3  Given amount of…

Q: Consider the following: 4NH3 + 5O2 → 4NO + 6H2O In an experiment, 5.42 g of NH3 are allowed to…

A: Limiting reagent: It can be defined as by saying that the reagent which used up completely in a…

Q: How many grams of O2 will be consumed during the formation of 13.67 grams of Fe2O3? Report your…

A: Mass of Fe2O3 = 13.67 g

Q: Using the balanced equation from Question #8, how many grams of lead will be produced if 2.54 grams…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".