3.) What mass of lithium nitrate would have to be dissolved in 36.0 g of water in order to make an 18.0% solution?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction