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Given the lattice energy of NaCl = 787 kJ/mol, the ionization energy of Na = 496 kJ/mol and the electron affinity of Cl = −349 kJ/mol, calculate the ΔH o for the reaction: Na(g) + Cl(g) → NaCl(s)
answered
May 9, 2020
Chemistry
high-school
7
votes
201k
views
Korea was separated by armed conflict following World War II and reunited after the Paris Peace Accords. Please select the best answer from the choices provided. T F
answered
Apr 7, 2020
Social Studies
middle-school
1
vote
101k
views
A camp offers a $15 discount toward the weekly camp fee of $255 for each new camper a returning teen brings with him. How many new campers does Lois need to bring if she wants to lower her fee to $195.
answered
Oct 31, 2019
Mathematics
middle-school
6
votes
178k
views
katrina makes 8 free throws for every 10 attempts at this rate how many free throws will she make in 25 attempts
answered
Mar 6, 2019
Mathematics
college
2
votes
44.1k
views
HELP 10 POINTS!!!!! The wonderful work of the Holy Spirit after Jesus had ascended to heaven is described by Luke in the book of_____________ . A. Luke B.Romans C.Acts
answered
Jan 22, 2019
History
middle-school
4
votes
197k
views
What is 816 divided by 850
answered
Oct 17, 2018
Mathematics
middle-school
2
votes
80.3k
views
What is the MOST recent evidence supporting plate tectonics?
answered
Jun 25, 2018
Biology
high-school
3
votes
135k
views
Rebel armies in Sierra Leone financed their uprising with _____. cash crops war tribunals diamonds grass-roots support
answered
May 16, 2018
Geography
high-school
3
votes
61.7k
views
QUESTION 9 Which of the following statements means "Gerardo is worried." A. Gerardo está enfermo. B. Gerardo está cansado. C. Gerardo está triste. D. Gerardo está preocupado.
answered
May 2, 2018
Spanish
high-school
2
votes
27.1k
views
What are the main ingredients with this casserole?
answered
Jun 16, 2017
English
high-school
2
votes
216k
views
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