en este experimento usted calculo las densidades usando objetos a temperaturas ambiente. como piensa que cambiaria la densidad del etanol si se hubiera calentado a 50C° antes del experimento

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

Is powdered sports drink ionic or covalent ? 10pts !