× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
New Topic  
stereohearts stereohearts
wrote...
Posts: 112
Rep: 1 0
4 years ago
In the chemical reaction of iron and sulfur:

2Fe(s) + 3S(s) → Fe2S3(s)

(a) How many moles of sulfur are needed to react with 1.42 moles of iron?

(b) Calculate the number of moles of iron needed to react with 2.75 moles of sulfur.

- - -

When acetylene, C2H2, burns in oxygen, high temperatures are produced that are used for welding metals.
                       
2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)

How many grams of CO2 are produced when 54.6 g of C2H2 is burned
Read 166 times
1 Reply

Related Topics

Replies
wrote...
#1
Educator
4 years ago
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1315 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 254
  
 1232
  
 477
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 352
Previous poll results: Does a gender wage gap exist in America?