Which of the following processes are exothermic? NaF(s) ? Na+(g) + F-(g) Li(s) ?...
Which of the following processes are exothermic?
| NaF(s) ? Na+(g) + F-(g) | |
| Li(s) ? Li(g) | |
| Cl2(g) ? 2Cl(g) | |
| Br(g) + e- ? Br-(g) | |
| None of the above are exothermic. |
Homework Answers
Br(g) + e- ? Br-(g) is exothermic because electron have to lose energy to occupy a lower energy orbital.
All the other processes are endothermic
Add Answer to:
Which of the following processes are exothermic?
NaF(s) ? Na+(g) + F-(g)
Li(s) ?...
which of the following process is exothermic? Which of the following processes is exothermic? the sublimation of K...
which of the following process is exothermic?
Which of the following processes is exothermic? the sublimation of K the second ionization energy of Sr the formation of NaF from its constituent elements in their standard state the breaking the bond of Br2 None of the above is exothermic
Which of the following processes are exothermic?the formation of NaBr from its constituent elements in their...
Which of the following processes are exothermic?the formation of NaBr from its constituent elements in their standard statethe breaking the bond of I2the sublimation of Lithe second ionization energy of MgNone of the above are exothermic
14. When 0.560 g of Na(s) reacts with excess F (g) to form NaF(s), 13.8 kJ...
14. When 0.560 g of Na(s) reacts with excess F (g) to form NaF(s), 13.8 kJ of heat is evolved at standard-state conditions. What is the standard enthalpy of formation (AH) of NaF(s)?
Which of the following processes is exothermic? the second ionization energy of Mg the sublimation of...
Which of the following processes is exothermic? the second ionization energy of Mg the sublimation of Na the breaking the bond of F2 the formation of KCl from its constituent elements in their standard state None of these is exothermic
The lattice energy of MgCl2 is the energy change for which one of the following processes?...
The lattice energy of MgCl2 is the energy change for which one of the following processes? Mg(s) + Cl2(g) +MgCl2(s) Mg2+(s) + 2(g) MgCl2(8) Mg(g) + 2Cl(g) — MgCl2(s) Mg?*(e) + 2Cl(s) — MgCl2(s) MgCl2(aq) — MgCl2(s)
The lattice energy of MgCl2 is the energy change for which one of the following processes?...
The lattice energy of MgCl2 is the energy change for which one of the following processes? Mg(s) + Cl2(g) – +MgCl2(s) Mg?*(s) + 2Cl(s) — + MgCl2(g) Mg(g) + 2Cl(g) — MgCl2(s) Mg2*() + 2CFE) — MgCl2(s) MgCl2(aq) + MgCl2(5)
For the bonds in these molecules: LiCl, Br2, NaF, CO2, BCl3 Which has the most ionic...
For the bonds in these molecules:
LiCl, Br2, NaF, CO2, BCl3
Which has the most ionic character? Which has the most
covalent character? Which two bonds have the same ionic
character?
Are my answers correct? Please use electronegavitiy to explain
why. I'm mostly confused on the third question, which two bonds
have the same ionic character, because the homework is telling me
I'm both correct and incorrect for that question? Thank you for
your assistance.
Lici Br2 NaF CO, BCI...
For which of the following processes would ∆S be negative? (a) the melting of ice (b)...
For which of the following processes would ∆S be negative? (a) the melting of ice (b) the freezing of water (c) the evaporation of a liquid (d) the breakup of a large molecule into smaller molecules(e) these all have positive ∆S values Which of the following reactions would have a negative ∆S°? (a) H2(g) → 2 H(g) (b) H2(l) → H2(g) (c) H2(g) + Cl2(g) → 2 HCl(g) (d) 2 H2(g) + CO(g) → CH3OH(g)(e) none of the above Please...
Which of the processes represented by the following chemical equations are exothermic?Choose one or more:A. $$heat+CaO(s)+3C(s)→CaC2(s)+CO(g)B....
Which of the processes represented by the following chemical equations are exothermic?Choose one or more:A. $$heat+CaO(s)+3C(s)→CaC2(s)+CO(g)B. $$CH4(g)+2O2(g)→CO2(g)+2H2O(g)+heatC. $$CH3OH(g)+32O2(g)→CO2(g)+2H2O(g) ΔH=−676kJ/molD. $$2H2O(g)→2H2(g)+O2(g) ΔH=+483.6kJ/molE. $$I2(s)→I2(g)F. $$H2O(g)→H2O(l)
Determine the lattice energy (in kJ/mol) of NaF(s), using the data provided. Energy to sublime Na(s)...
Determine the lattice energy (in kJ/mol) of NaF(s), using the data provided. Energy to sublime Na(s) = 109.0 kJ/mol Electron affinity of F(g) = -328.0 kJ/mol First ionization energy of Na(g) = 495.0 kJ/mol Bond energy of F2(g) = 154.0 kJ/mol ΔHrxn for Na(s) + 1/2 F2(g) → NaF(s) = -569.0 kJ/mol
which of the following process is exothermic?
Which of the following processes is exothermic? the sublimation of K the second ionization energy of Sr the formation of NaF from its constituent elements in their standard state the breaking the bond of Br2 None of the above is exothermic
14. When 0.560 g of Na(s) reacts with excess F (g) to form NaF(s), 13.8 kJ of heat is evolved at standard-state conditions. What is the standard enthalpy of formation (AH) of NaF(s)?
Which of the following processes is exothermic? the second ionization energy of Mg the sublimation of Na the breaking the bond of F2 the formation of KCl from its constituent elements in their standard state None of these is exothermic
The lattice energy of MgCl2 is the energy change for which one of the following processes? Mg(s) + Cl2(g) +MgCl2(s) Mg2+(s) + 2(g) MgCl2(8) Mg(g) + 2Cl(g) — MgCl2(s) Mg?*(e) + 2Cl(s) — MgCl2(s) MgCl2(aq) — MgCl2(s)
The lattice energy of MgCl2 is the energy change for which one of the following processes? Mg(s) + Cl2(g) – +MgCl2(s) Mg?*(s) + 2Cl(s) — + MgCl2(g) Mg(g) + 2Cl(g) — MgCl2(s) Mg2*() + 2CFE) — MgCl2(s) MgCl2(aq) + MgCl2(5)
For the bonds in these molecules:
LiCl, Br2, NaF, CO2, BCl3
Which has the most ionic character? Which has the most
covalent character? Which two bonds have the same ionic
character?
Are my answers correct? Please use electronegavitiy to explain
why. I'm mostly confused on the third question, which two bonds
have the same ionic character, because the homework is telling me
I'm both correct and incorrect for that question? Thank you for
your assistance.
Lici Br2 NaF CO, BCI...
Which of the processes represented by the following chemical equations are exothermic?Choose one or more:A. $$heat+CaO(s)+3C(s)→CaC2(s)+CO(g)B. $$CH4(g)+2O2(g)→CO2(g)+2H2O(g)+heatC. $$CH3OH(g)+32O2(g)→CO2(g)+2H2O(g) ΔH=−676kJ/molD. $$2H2O(g)→2H2(g)+O2(g) ΔH=+483.6kJ/molE. $$I2(s)→I2(g)F. $$H2O(g)→H2O(l)
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