Balance the equation. mg + hcl → h2 + mgcl2 a. mg + 2hcl → h2 + mgcl2 b. mg + hcl → h + mgcl c. mg + hcl → h2 + mgcl

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.