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Answer:</h3>
- Can only be seen while looking through a lens
- May appear larger than the object
- Appears to come from behind the lens
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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
The other dude is rude wrong
The correct answer is Dmitri Mendeleev
To begin with, the equation given is not correct.
Correct equation is : CaCO3 + HCl ---> CaCl2 + H2O + CO2
It's CaCl2 not CaCl because Ca has a valency of 2
LHS RHS
CaCO3 + HCl ---> CaCl2 + H2O + CO2
First of all, to balance the equation you must look at the number of atoms on each side of the equation.
we have 2 H on the RHS and 1 H on the LHS. So, we put a 2 on the LHS
CaCO3 + 2HCl ---> CaCl2 + H2O + CO2
Check for the LHS: 1 Ca, 1 C, 3 O, 2 H & 2 Cl on the LHS
Now check for the RHS: 1 Ca, 2 Cl, 2 H, 1 C & 3 O
Hope it helped!
It tells you how many protons it has and because the number of protons =electrons it tells you also the number of electrons.
