Consider the following particulate-level representation. The larger spheres represent N, and the smaller spheres represent H. Which of the following statement correctly characterizes this representation? O The reactant could be represented as NH3. O The products of the reaction are N₂ and H₂. O The equation is "balanced." O If the equation for the reaction were written as shown above the coefficient of the nitrogen- containing product would be 4. O All of these statement correctly characterize this reaction.

The solvent dichloromethane (CH 2Cl 2, molar mass 84.93 g/mol) can be prepared by reaction of methane (CH 4, molar mass 16.04 g/mol) with Cl 2 (molar mass 70.90 g/mol), according to the balanced equation, CH 4 + 2 Cl 2---------->CH 2Cl 2 + 2 HCl. a. If 5.00 g of methane and 15.0 g of Cl 2 are used, how many moles of each reactant are used? b. What is the limiting reactant? c. How many moles of product are formed? d. How many grams of product are formed? e. If 5.6 g of product are formed, what is the percent yield of the reaction?

. Consider a 3.52-g sample of CaCO3 (99.87% pure) in a flask and a 100.0 mL sample of vinegar (5% acidity) in a graduated cylinder. The combined mass of both reagents and containers is 255.98 g. After swirling the reaction mixture for about twenty minutes, the combined mass of the reaction mixture and containers is found to be 254.46 g. What is the percent yield of carbon dioxide in this experiment?

One very simple chemical that will be needed in large amounts is methane (CH4), but it is not common on Mars. It is very easily produced, however, using the Sabatier process. Write the balanced chemical equation for the Sabatier process

The concept of determining which reactant is limiting and which is in excess is akin to determining the number of sandwiches that can be made from a set number of ingredients. Assuming that a cheese sandwich consists of 2 slices of bread and 3 slices of cheese, determine the number of whole cheese sandwiches that can be prepared from 3232 slices of bread and 4545 slices of cheese.

For the following reaction, give the balanced equation for the reaction.   Consider the following unbalanced equation: NH3(g) → N2(g) + H2(g) How many moles of N2 will be produced by the decomposition of 3.08 moles of ammonia? What information do we need to find how many moles of N2 will be produced?

Ethane is a gas similar to methane that burns in oxygen to give carbon dioxide gas and steam. The steam condenses to form water droplets. The chemical equation for this reaction is C2H6 + O2 → CO2 + H2O. Balance this equation.

of 15 An aqueous solution containing 9.88 g of lead(II) nitrate is added to an aqueous solution containing 5.48 g of potassium chloride. Enter the balanced chemical equation for this reaction. Be sure to include all physical states. balanced chemical equation: What is the limiting reactant? O lead(II) nitrate O potassium chloride The reaction goes to completion, but in the process of washing and drying the precipitate, some was lost. The percent yield for the reaction is 84.8%. How many grams of precipitate are recovered? F precipitate recovered: R V G Search or type URL % 5 T G B MacBook Pro 6 Y H & 7 N U J 8 00 M 1 ( 9 K O V H I ) O L P ^. { لا لا / 1 = ? 11 1 mi

Can you please help me with question 4.

Pure magnesium metal is often found as ribbons and can easily burn in the presence of oxygen. When 4.78 g of magnesium ribbon burns with 7.61 g of oxygen, a bright, white light and a white, powdery product are formed. Enter the balanced chemical equation for this reaction. Be sure to include all physical states. equation: What is the limiting reactant? охудen O magnesium The reaction goes to completion, but in the process of recovering the product, some of it was lost. The the percent yield for the reaction is 82.8%. How many grams of product are recovered? mass of product recovered: How many grams of the excess reactant remain? Assume the reaction goes to completion. mass of excess reactant: