This is the equation for the formation of magnesium chloride. mg(s) + 2hcl(l) → mgcl2(aq) + h2(g) which are the reactants and the products in this reaction? a. the reactants are mgcl2 (magnesium chloride) and hcl (hydrochloric acid); the products are mg (magnesium) and h2 (hydrogen). b. the reactants are mgcl2 (magnesium chloride) and h2 (hydrogen); the products are mg (magnesium) and hcl (hydrochloric acid). c. the reactants are mg (magnesium) and h2 (hydrogen); the products are mgcl2 (magnesium chloride) and hcl (hydrochloric acid). d. the reactants are mg (magnesium) and hcl (hydrochloric acid); the products are mgcl2 (magnesium chloride)and h2 (hydrogen).

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

Energy is the ability to do work which measures what

Suppose that an electromagnetic wave which is linearly polarized along the x−axis is propagating in vacuum along the z−axis. the wave is incident on a conductor which is placed at z > 0 region of the space. the conductor has conductivity σ, magnetic permeability µ and electric permittivity ε. (a) find the characteristic time for the free charge density which dissipates at the conductor. (b) write the maxwell equations and derive the wave equation for a plane wave propagating in a conductor. (c) find the attenuation distance at which the incident amplitude reduces to e ^−1 of its initial value. (d) find the electric and magnetic fields inside the conductor. 8 (e) find the power loss per area of the incident electromagnetic wave at the surface of conductor.