According to the following reaction, how many moles of nitrogen gas will be formed upon the complete reaction of 0.350 moles ammonium nitrite? ammonium nitrite (aq) -> nitrogen (g) + water (l) _______ moles nitrogen gas

a reaction mixture initially contains 0.25 moles of ZnS and 0.25 moles of O2. after the reaction is complete. how many ,oles of the excess reactant are left over?  2 ZnS+3 O2---> + 2 SO2 0.250 moles O2 0.125 moles O2 0.083 moles ZnS 0.167 moles ZnS

Could someone please Help! No plagiarism Please! 1. Consider the following reaction:  2H₂O (l)    →    2H₂ (g)    +     O₂ (g)                                   Which of the following statements is/are true for this reaction?                     A. This is a synthesis reaction. B. This is a decomposition reaction. C. This is a combustion reaction. D.None of the above   2. The reaction below shows the equation for the combustion of methane gas. How does the chemical equation demonstrate the Law of Conservation of Matter?   A. There is one CH₄ molecule on the reactant side and one CO₂ molecule on the product side of the reaction. B. There are two O₂ molecules on the reactant side and two H₂O molecules on the product side in the reaction. C. There are four oxygen atoms, four hydrogen atoms and one carbon atom on both the reactant and product side of the reaction. D. The reaction does not satisfy the Law of Conservation of Matter.   3. Chemists use the activity…

Classify each equation as either decomposition, combination, or combustion.

Question Completion Status: QUESTION 2 Balancing refers to the number of substances put INTO a reaction has to equal the number of substance PRODUCED by the reaction. This means there must be an understanding of HOW MANY of something is put into a reaction. Match the following description with the HOW MANY X of each substance. Answers may be used once, more than once, or not at all. Example: 6 X3Cl means I have/need 18 X's Example: 10 HX means I have/need 10 X's Etc. - - - - - 3 X20 ✓ 2 Cax 4 XF2 5 AIX3 1 PBX4 ✓2 KX Click Save and Submit to save and submit. Click Save All Answers to save all answers. -4-531 84 A. 2X's B. 5 C. 15 X's D. 3 E. 4 X's F. 10 G. None of these H. 6X's 1.20 3000 103931 401818 / HOTEL hole-he artbl Save All Answers

3Ba(NO3)2 + 2Na3PO4 -> Ba(PO4) + 6Na(NO3)2   1) Determine the Mass of precipitate produced when excess barium nitrate is reacted with 30.5g of sodium phosphate 2) Determine the number of barium nitrate molecules that would be needed to react   -----------------------------------------------------------------------------------   C3H8 + 5O2 ----> 3CO2 + 4H20   1) Determine the Mass of oxygen that would be needed to combust 4.55 x 10^23 molecules of propane (C3H8)   2) Calculate the mass carbon dioxide produced

Mass in chemical reactions

please answer this and provide the correct amount of sig figs

A sample of 0.75 g of hydrogen gas was obtained by reacting 32.5 g hydrochloric acid with 18.0 g magnesium. Mg(s) + 2 HCI (aq) --> MgCl₂ (aq) + H₂(g) What is the percent yield for this reaction? 100% 83% 41% 50%

2HgO (s) →2 Hg (s) + O2(g) is best described as a ______________________ reaction.  Group of answer choices Decomposition Synthesis/Combination Double Displacement Single Displacement Combustion