3. Which of the following is a physical property? A. A pipe cracks when the water inside freezes
B. Paper turns to ashes when ignited
C. Iron turns into rust when in contact with water over time
D. Baking a bread

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

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 343 in the sequence -5, -2, 1, 4, 7