It's sp3d according to the lewis dot structure (four bonds, one lone pair).
There are 5 significant figures in the following number. All of the numbers essentially are significant.
Answer:
No.
Explanation:
No. There is 1 atom of Ca on the left and 2 Ca's on the right and 2 OH's on the left and 4 on the right.
The balanced equation is:
4OH- + 2Ca2+ ----> 2Ca(OH)2.
82 because that’s my answer
Answer:
If you're trying to memorize something, I'd suggest you'd look over the piece multiple times, and if that doesn't help maybe turn it into a little song that you can remember.
Explanation:
Personally I find making a little song easier to remember, and if that doesn't help, just make sure you keep trying, and maybe even do a little bit of digging on Google to find more things such as songs that have already been made to memorize the piece.