Question

4. Choose one of the compounds from the table and explain how you know the numbers of atoms in your formula.

Salt = CaCI2

Answer 1

Answer:

Well, i hope this is the answer you needed.

CaCl2

now in this first try to spot the elements.

yeah, Ca (calcium) and Cl (chlorine),

now count the number of atoms that you spotted.

Secret Tip: Just see the numbers that are written in subscript (google it if u dont know what it is). If there is nothing written under an element then consider the atom number to be 1.

In CaCl2, as there is nothing written under Ca thus the no. of atoms is 1

and for Cl there is 2 written if u see very very very closely

thus the total number of atoms is 1+2.

------------------------**How to add 1 and 2 to get the result**----------------------

Now, u need to know the order of numbers.

they are like

1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

if u go one step ahead of 2 u will find that 1+2 is 3

Thus the answer is 3.

mark me as the brainliest or I will send a hitman to your house

Answer 2

Given: Calcium chloride

To find: The number of atoms present in Calcium chloride.

Solution:  To determine the number of atoms in a given compound, the first step is to analyze the chemical formula of the compound.

The chemical formula of calcium chloride is CaCl2.

In calcium chloride, there are two atoms and they are calcium and chloride.

The number of calcium in calcium chloride is = 1

The number of chloride in calcium chloride is = 2

Therefore, the total number of atoms present in Calcium chloride is = 2+1

= 3

Hence, the number of atoms in Calcium chloride is 3