What type of ions have names ending in -ide?

Explanation:

The that end in -ide include, hydroxide,  peroxide,  cyanide, ##NH_2^-## amide and hydrogen sulfide. The -ide suffix, is usually reserved for monatomic anions. Non-metal ions like oxygen, fluorine and chlorine take on the -ide and become oxide, fluoride and chloride.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.