Na2CO3 mol = mass/rfm
= 91.9 / ( 23+23+12+16+16+16)
= 91.9/106
=919/1060 or roughly 0.867
Mole ratio of sodium carbonate to calcium carbonate is 1:1
Therefore calcium carbonate mol = mass/rfm
919/1060 = mass / (40+12+16+16+16)
919/1060 = mass / 100
Mass = 919/1060 x 100
= 4595/53 or 86.7g to 3 significant figures
Answer:
Hey there!
This is a convergent boundary. Here, a oceanic crust collides with a continental crust.
Hope this helps :)
C
Sana makatulong answer ko
<h3>
Answer:</h3>
- Can only be seen while looking through a lens
- May appear larger than the object
- Appears to come from behind the lens
<h3>
Explanation:</h3>
To answer this question we need to ask ourselves;
What is a virtual image?
- A virtual image is an image that can not be formed on a screen.
- It is formed by rays that appear to converge at a point.
What are the characteristics of a virtual image?
- A virtual image can only be seen while looking through lenses
- The image appear to come from behind the lens
- It may be larger than the object
- It can not be projected onto a screen.
- It is always upright
