× 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
New Topic  
Shudson Shudson
wrote...
Posts: 958
Rep: 2 0
6 years ago
A white powdery substance called efflorescence caused by an alkaline chemical reaction with water is a common problem with this type of surface
 
  a. metal
   b. gypsum board
   c. masonry
Read 43 times
1 Reply
Replies
Answer verified by a subject expert
lawnmower635lawnmower635
wrote...
Top Poster
Posts: 548
Rep: 2 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

Shudson Author
wrote...

6 years ago
Correct Slight Smile TY
wrote...

Yesterday
Thanks
wrote...

2 hours ago
Thanks for your help!!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1390 People Browsing
Related Images
  
 1032
  
 198
  
 636
Your Opinion
Which country would you like to visit for its food?
Votes: 204