How many grams of iron are needed to produce 3 g of iron(III) chloride? Balance the equation:  ____ Fe + ____ Cl2 → ____ FeCl3 For molar mass use all whole numbers from the periodic table.

Chapter 4 Limiting reactants

Write a balanced chemical equation based on the following description: butane gas reacts with oxygen gas to produce carbon dioxide gas and water vapor C4H10(g)+O2(g)_

Balance the following chemical equation:   ___N2H4 (g) + ___N2O4 (g)  →→2 (g)  + ___H2O (g)

14. A substance is found by analysis to contain 45.57% tin and 54.43% chlorine. What is the empirical formula for the substance? 15. Aluminum sulfide reacts with water to form aluminum hydroxide and hydrogen sulfide. a) Write a balanced equation for this reaction. b) How many grams of aluminum hydroxide can be obtained from 5.50 g of aluminum sulfide? 16. When copper (1) sulfide is partially roasted in air (reaction with 02), copper(1) sulfite is formed first. Subsequently, upon heating, the copper sulfite thermally decomposes to copper (1) oxide and sulfur dioxide. Write balanced chemical reactions for these two reactions. 17. Write the molecular, complete ionic & net ionic equation for a single replacement (redox) reaction between zinc and copper (ii)sulfate? Identify the oxidized and the reduced species. 18. How many grams of Mg(OH)2 will be needed to neutralize 25 ml of stomach acid if stomach acid is 0.10M HCI? 19. How many litres of 3.4 M HI will be required to reach the…

Consider the following unbalanced chemical reaction: Al (s) + HCI (g) → AICI3 (g) + H2 (g) 1. Balance the chemical equation 2. How many moles of aluminum metal are needed to produce 3.33 moles of aluminum chloride? 3. Calculate the mass of aluminum metal (g) needed to produce 3.33 moles of aluminum chloride.

The coefficients in a balanced chemical equation provide the mole-to- mole stoichiometry among the reactants and products. The molar mass (in g/mol) can be used as the conversion factor between moles and the mass of a substance. Thus, the balanced equation and molar masses can be used in conjunction with one another to calculate the masses involved in a reaction. Complete combustion of methane When methane (CH4) burns, it reacts with oxygen gas to produce carbon dioxide and water. The unbalanced equation for this reaction is CH₂(g) + O₂(g) →CO₂(g) + H₂O(g) This type of reaction is referred to as a complete combustion reaction. Review Constants Perio Part A What coefficients are needed to balance the equation for the complete combustion of methane? Enter the coefficients in the order CH4, O2, CO2, and H₂O, respectively. Express your answer as four integers, separated by commas (e.g., 1,2,3,4).

1.Given the following balanced chemical equation, how many grams of O2 would be produced from 21.44 g of Potassium chlorate? 2KClO3 --> 2KCl + 3O2  ________g O2 All work must be shown and submitted. Any steps left out may result in a loss of points for that particular problem.   ALL UNITS AND LABELS MUST BE SHOWN THROUGHOUT THE PROBLEM, INCLUDING CANCELLING THEM WHEN APPROPRIATE. If units and/or labels are missing, 2 points will be deducted per problem.

For the following reaction, 4.44 grams of calcium hydroxide are mixed with excess sulfuric acid. The reaction yields 7.74 grams of calcium sulfate. sulfuric acid (aq) + calcium hydroxide (s) →→→→calcium sulfate (s) + water (1) What is the theoretical yield of calcium sulfate ? What is the percent yield of calcium sulfate ? grams %

Balance the following reaction equation using coefficients: Alls) + Bro(g) AIBr3{s) Based on the balanced equation, if 15 moles of Al(s) are reacted with 15 moles of Br2(g) how many moles of AIBr3(s) will theoretically be produced?