What sources of protein are good for our bodies?

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same