Question

Mass is conserved in chemical reactions - specifically, the number of atoms of each element does not change. Equations must therefore be BALANCED. The equation of a reaction between a metal and an acid here, will be balanced when the question mark corresponds to
A. 2
B. 1
C. 4
D. 0
​

Answer 1

${\huge{\bold{\red{\bigstar{\boxed{\boxed{\sf{2}}}}}}}}$

Answer 2

Answer:

b)1 is the answer