What is the freezing point of a 0.195m aqueous solution of k2s? (report amount to three decimal points)

What is the number of moles in 15.0 g ash3?

What is the enthalpy of combustion (per mole) of c4h10 (g)? –2,657.5 kj/mol –5315.0 kj/mol –509.7 kj/mol –254.8 kj/mol

What type of chemical bond is formed between two atoms of bromine 1. metallic 2. hydrogen 3. ionic 4. covalent