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I have 150. minutes to complete the test. This test will close out a...
Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) - 4 CO2(g)...
Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) - 4 CO2(g) + 2 H2O(g) o C2H2(g) is reduced o O2(g) is the reducing agent. o C2H2(g) is oxidized o The oxidation state of O in O2(g) increases from 0 to -2.
Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) → 4 CO2(g)...
Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g) Group of answer choices C2H2(g) is reduced C2H2(g) is oxidized The oxidation state of O in O2(g) increases from 0 to -2. O2(g) is the reducing agent.
1)Select the compound that is most likely a weak base. Group of answer choices NH3 CH3CO2H...
1)Select the compound that is most likely a weak base. Group of answer choices NH3 CH3CO2H LiOH HOCl 2) Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g) Group of answer choices C2H2(g) is oxidized The oxidation state of O in O2(g) increases from 0 to -2. O2(g) is the reducing agent. C2H2(g) is reduced
ck on the submit button when you are done. If you do not submit the test,...
ck on the submit button when you are done. If you do not submit the test, your grade wi corded. have 150. minutes to complete the test. This test will close out at the end of 150. minute sity = mass/volume ogadro's number = 6.022 x 1023 mol-1 Question 3 5 Select the oxidation-reduction reaction(s)? 1. Pb(ClO4)2(aq) + 2 Kl(aq) → Pbl2(s) + 2 KCIO,(aq) 2. Cl2(g) + Cul2(aq) → CuCl(aq) + 12(aq) 3. CaCO3(s) - CO2(g) + CaO(s) o...
A 0.704 g of a pure acid, HA, is dissolved in water and an acid- base...
A 0.704 g of a pure acid, HA, is dissolved in water and an acid- base indicator added. The solution requires 33.78 mL of 0.256 M NaOH solution to reach the end point. What is the molar mass of the acid? HA(aq) + NaOH(aq) → NaA(aq) + H2O(aq) 145 g/mol 81.4 g/mol 20.0 g/mol 199 g/mol Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g) C2H2(g) is reduced O2(g) is...
Please help. I'm not sure how to go about figuring out which species oxidize or reduce...
Please help. I'm not sure how to go about figuring out
which species oxidize or reduce or which are the agents.
2. Complete the table given that the following three reactions occur in the direction as written: a) 2Ag' (aq) + Fe(s) - Fe?' (aq) + 2Ag (s) b) 2Ag (aq) + Cu(s) — Cu (aq) + 2Ag (s) c) Cu (aq) + Fe (s) - Fet (aq) + Cu(s) Reaction Species oxidized Species reduced Oxidizing agent Reducing agent 3....
help with these 3 please? 18. Of the reactions below, which one is a precipitation reaction?...
help with these 3 please?
18. Of the reactions below, which one is a precipitation reaction? a. NH4Cl → NH3 + HCI b. 2Mg + O2 + 2MgO c. 2N2 + 3H2 + 2NH3 d. 2CH4 +402 2002 + 4H20 e. Ca(NO3)2 + Na2S → CSS(s) + 2NaNO3 19. In the equation, CrO42(aq) + H2O(l) → CrO2(aq) + OH-(ag), the change in the oxidation number of the chromium atom is a. decrease by six units b. decrease by three units...
Can someone help answer these? 9. Percent yield a. In an experiment to prepare sodium acetate, the theoretical yie...
Can
someone help answer these?
9. Percent yield a. In an experiment to prepare sodium acetate, the theoretical yield is 105,0 g. If the actual yield is 99.8 g, what is the percent yield? b. You have calculated that you should obtain 567.3 g of Al from Al2O3. You only obtained 492.2 g. What was your percent yield? c. If you should have gotten 98.5 g of CaCO3 from an experiment and this represented a 75.0% yield, what was the...
Hi, can anyone please help me with this? i have no clue how to define if...
Hi,
can anyone please help me with this? i have no clue how to define
if a reaction is Oxidation reduction or not. Thanks a lot
OXIDATION-REDUCTION Introduction Chemists refer to reactions which involve a transfer of electrons from one reactant to another as oxidation reduction reactions of just "redox" reactions. Oxidation is defined as a loss of electron and reduction as a gain of electron by a substance during a chemical reaction. The loss of electrons by one substance...
Can someone please help me figure out #10, please! I have a final tomorrow and would...
Can someone please help me figure out
#10, please! I have a final tomorrow and would greatly appreciate
it if you showed your work : )
10. Use the bond energies provided to estimate AH nn for the reaction below. rxn CHOH(I) + 2 O2(g)-CO2(g) + 2 H2O(g) Bond Bond Energy (kJ/mol) C-H 414 C-O 360 C O 799 O-O 498 O-H 464
Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) - 4 CO2(g) + 2 H2O(g) o C2H2(g) is reduced o O2(g) is the reducing agent. o C2H2(g) is oxidized o The oxidation state of O in O2(g) increases from 0 to -2.
ck on the submit button when you are done. If you do not submit the test, your grade wi corded. have 150. minutes to complete the test. This test will close out at the end of 150. minute sity = mass/volume ogadro's number = 6.022 x 1023 mol-1 Question 3 5 Select the oxidation-reduction reaction(s)? 1. Pb(ClO4)2(aq) + 2 Kl(aq) → Pbl2(s) + 2 KCIO,(aq) 2. Cl2(g) + Cul2(aq) → CuCl(aq) + 12(aq) 3. CaCO3(s) - CO2(g) + CaO(s) o...
A 0.704 g of a pure acid, HA, is dissolved in water and an acid- base indicator added. The solution requires 33.78 mL of 0.256 M NaOH solution to reach the end point. What is the molar mass of the acid? HA(aq) + NaOH(aq) → NaA(aq) + H2O(aq) 145 g/mol 81.4 g/mol 20.0 g/mol 199 g/mol Based on the equation below, which is correct? 2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g) C2H2(g) is reduced O2(g) is...
Please help. I'm not sure how to go about figuring out
which species oxidize or reduce or which are the agents.
2. Complete the table given that the following three reactions occur in the direction as written: a) 2Ag' (aq) + Fe(s) - Fe?' (aq) + 2Ag (s) b) 2Ag (aq) + Cu(s) — Cu (aq) + 2Ag (s) c) Cu (aq) + Fe (s) - Fet (aq) + Cu(s) Reaction Species oxidized Species reduced Oxidizing agent Reducing agent 3....
help with these 3 please?
18. Of the reactions below, which one is a precipitation reaction? a. NH4Cl → NH3 + HCI b. 2Mg + O2 + 2MgO c. 2N2 + 3H2 + 2NH3 d. 2CH4 +402 2002 + 4H20 e. Ca(NO3)2 + Na2S → CSS(s) + 2NaNO3 19. In the equation, CrO42(aq) + H2O(l) → CrO2(aq) + OH-(ag), the change in the oxidation number of the chromium atom is a. decrease by six units b. decrease by three units...
Can
someone help answer these?
9. Percent yield a. In an experiment to prepare sodium acetate, the theoretical yield is 105,0 g. If the actual yield is 99.8 g, what is the percent yield? b. You have calculated that you should obtain 567.3 g of Al from Al2O3. You only obtained 492.2 g. What was your percent yield? c. If you should have gotten 98.5 g of CaCO3 from an experiment and this represented a 75.0% yield, what was the...
Hi,
can anyone please help me with this? i have no clue how to define
if a reaction is Oxidation reduction or not. Thanks a lot
OXIDATION-REDUCTION Introduction Chemists refer to reactions which involve a transfer of electrons from one reactant to another as oxidation reduction reactions of just "redox" reactions. Oxidation is defined as a loss of electron and reduction as a gain of electron by a substance during a chemical reaction. The loss of electrons by one substance...
Can someone please help me figure out
#10, please! I have a final tomorrow and would greatly appreciate
it if you showed your work : )
10. Use the bond energies provided to estimate AH nn for the reaction below. rxn CHOH(I) + 2 O2(g)-CO2(g) + 2 H2O(g) Bond Bond Energy (kJ/mol) C-H 414 C-O 360 C O 799 O-O 498 O-H 464
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