What is the following choices is both true and unique for assigning names to covalent compounds? a)covalent compound names have the least electronegative atom written last
b)covalent compound names have roman numerals to indicate the number of atoms in the formula
c)covalent compound names all end in “-ide”
d)covalent compound names use latin prefixes to indicate the number of atoms in the formula

i'm wiling to try and you : )

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.

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.