PLEASE HELP WITH MY CHEM QUESTIONS ILL GIVE 10 PTS TO FIRST RIGHT ANSWER!?





question 1 (Multiple Choice Worth 2 points)Which of the following reactant pairs will not react together to produce a reaction?Na + BaOK + ZnBr2Al + HClMg + H2OQuestion 2 (Multiple Choice Worth 2 points)Which of the following pairs of reactants will react together to produce water (H2O) as one of the products?NaOH and H3PO4MgO and Ca(OH)2HBr and NaNO3OCaO and H2OQuestion 3 (Essay Worth 4 points)Write out the balanced equation for the reaction that occurs when Ca(OH)2 and H3PO4 react together. You do not need to make your subscripts smaller; just write them out at regular numbers. For example: Ca(OH)2.Question 4 (Multiple Choice Worth 2 points)Which of the following is a single replacement reaction?2Al + 6H2O 2Al(OH)3 + 3H2CH4 + 2O2 CO2 + 2H2OFe2O3 + 3H2O 2Fe(OH)3AgNO3 + NaCl AgCl + NaNO3Question 5 (Multiple Choice Worth 2 points)Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas?MgLiAlPbQuestion 6 (Multiple Choice Worth 2 points)What is one of the products produced when Mg(NO3)2 and AlPO4 react together?Mg3(PO4)2Al(NO3)2Mg(PO4)2AlNO3Question 7 (Multiple Choice Worth 2 points)Based on reactivity, which of the following elements can replace iron (Fe) in a compound during a single replacement reaction?AlCuFCoQuestion 8 (Essay Worth 4 points)Write out the balanced equation for the reaction that occurs when Al and PbO react together. You do not need to make your subscripts smaller; just write them out at regular numbers. For example: H2O.



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2 Responses to “PLEASE HELP WITH MY CHEM QUESTIONS ILL GIVE 10 PTS TO FIRST RIGHT ANSWER!?”

  1. axially says:

    question 1 (Multiple Choice Worth 2 points)Which of the following reactant pairs will not react together to produce a reaction?TIPS: You chould understand which of the following elements is more electropositive than the other one. Eg: Na + BaOIf Na is more electropositive than Ba, thus Na can kick out Ba to become Na2O.Just that simple, so u need to test it 1 by 1.K + ZnBr2 –> K or Zn is more electro+ve?Al + HCl –> Al or H is more electro+ve?Mg + H2O –> Mg or H is more electro+ve?You can refer this in chapter related to electrochemistry. Hope this will help u to understand a bit.

  2. MARLIN says:

    I have tried to answer all the questions. Some may turn out to be wrong, Do verify them.1. Al + HCl2. NaOH and H3PO4 HBr and NaNO3O3. Ca(OH)2 + H3PO4 = Ca3(PO4)3 + H2O4. 2Al + 6H2O 2Al(OH)3 + 3H25. Mg6. Mg3(PO4)27.Al and Co8. 2Al + 3 PbO = Al2O3 + 3Pb