Which of the following are molecular solids and which are covalent solids?
1. se8
2. hbr
3. si
4. co2
5. c
6. p4o6
7. sih4

Compare and contrast refraction of light and sound will give brainliest

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback