What object's motion will change; net force is greater than O

When the net force is greater than 0, it is an unbalanced force. The force acting on an object changes its speed and direction of motion. If  the forces are balanced the object will not move and the velocity will remain constant.

Hence the object's motion will change in the direction of greater force.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.