Energy is the capacity of matter to do work and is often measured in Joules or Calories. If 4.18 Joules is equivalent to one calorie, determine the number of Joules of energy provided by a 100 calorie snack pack. *

Which of these conditions most likely produces an unstable isotope?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.