2. Potassium chlorate, KClO3, is obtained by the action of chlorine on a hot potassium hydroxide solution KOH, according to the reaction: KOH + Cl2 → KClO3 + KCl + H2O a) Adjust the chemical equation. b) Calculate the amount of KClO3, in mol, obtained by reacting 10 mol of KOH with the sufficient amount of Cl2. c) Calculate the amount of chlorine, in mol, that reacts completely with 5 mol of potassium hydroxide.

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 reaction between hydrochloric acid and calcium hydroxide: 2 HCI (aq) + Ca(OH)2 (aq) --> CaCl2 (aq) + 2 H2O (m) A chemist allows 10.5 g of HCI and 10.5 g of Ca(OH), to react. Determine the theoretical yield of H2O for the reaction. 5.11 16.0 5.19 O 15.7

2 N₂O5(g) --> 4 NO₂(g) + O₂(g) True/False: The equation is already balanced as it is written.

What is the balanced equation for the experiment hot ice (sodium acetate)? ***For example: The decomposition of the hydrogen peroxide into water and oxygen is catalyzed by the iodide ion. 2 H2O2(aq) → 2 H2O(l) + O2(g)   This is what I have but I feel like I am missing something? Na+ [HCO3]- + CH3 - COOH ---> CH3 - COO-NA+ + H2O + CO2

1. Which is TRUE for the equation (NH4)2SO4? The equation is balanced. The total mass of the product is lesser. Air molecules can be compressed. The type of elements is the same on both sides. Other: what 2. Based on this unbalanced equation CaCO3 ---- CaO + would be the other product? 02 CO CO2. 3. How can we say that a chemical reaction took place between reactants? If a new product was formed. If there is a change in color, state, odor, and taste, or bubbles evolve. If the reactants' number of atoms remains the same. Both A and B are correct NH3+ H2SO4

83. The combustion of gasoline produces carbon dioxide and water. Assume gasoline to be pure octane (C8H18) and cal- culate how many kilograms of carbon dioxide are added to the atmosphere per 1.0 kg of octane burned. (Hint: Begin by writing a balanced equation for the combustion reaction.)

The reaction for producing glucose in plants, called photosynthesis, is   6CO2+6H2O−→−−lightC6H12O6+6O2 6CO2+6H2O→lightC6H12O6+6O2    If a plant produces 5.81 mol C6H12O6,5.81 mol C6H12O6, how many moles of CO2CO2 are needed? moles CO2CO2:

Suppose the following reaction was carried out in the presence of excess Al.  Al + Cl2 --->  AlCl3 How many moles of Al are consumed if 9.07 moles of Cl2 were fully reacted?

4. An old antacid commercial claimed that each tablet of their product could "neutralize 47 times its mass in stomach acid". The active ingredient in the antiacid tablet, NaAl(OH)₂CO3, reacts with HCl in stomach acid according to this balanced reaction: NaAl(OH)₂CO3 + 4 HCl →→ NaCl + AlCl³ + 3 H₂O + CO₂ How many moles of HCl can a 1.03 g of antiacid tablet neutralize if the tablet contains 0.246 g of the active ingredient? If stomach acid has a concentration of 0.14 M HCl, assuming the density of stomach acid to be similar to that of water (1.00 g/mL), what is the mass of stomach acid that the 1.03 g of antiacid tablet can neutralize? Does this number support the claim in the commercial?