The equation 2nano3 + cacl2 —> 2nacl + ca(no3)2 is balanced. how many atoms of calcium (ca) are there on either side of the equation? four six one two

Option (c) is the correct answer.

Explanation:

As the given reaction equation is as follows.

The coefficient present adjacent to the chemical formula of a compound or molecule represents the atoms of each element present in the formula or reaction.

Since, no coefficient is present in front of and on either side of the reaction mixture. Hence, it means only one atom of calcium is present on either side of the reaction mixture.

Thus, we can conclude that one atom of calcium (Ca) are there on either side of the equation.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer