What is the molality of a solution in which 25 g of NaCI is dissolved in 2.0 Kg of water?

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 l to 4.50 l? the initial temperature is 10.0°c and pressure is constant throughout the change. which equation should you use? t2= v2/v1 t1 what is the final temperature? ⇒ 849 k these are the answers.