Two molecules of Chlorine (Cl2) and one molecule of Magnesium Sulfide (MgS) combine in a reaction. How many atoms should be in the products?

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction