Which of these is NOT absolutely necessary to complete a circuit? 1) switch
2) voltage source
3) conductor
4) electronic device

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves

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.)