Assign oxidation numbers in the following corrosion reactions for copper. Tell which substances are oxidized and which are reduced. 2Cu (s) + 1⁄2 O2 (g) → Cu2O (s) Cu2O (s) + 1⁄2 O2 (g) → 2CuO (s)

When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous.

How do the atoms of a molecule or compound stay together?

What is a condenser?

How many years ago were seven score and four years ago? (a score means 20)

Which statement best describes synthetic rubber? A) Synthetic rubber is in limited supply compared with natural rubber B) Synthetic rubber has the same properties as natural rubber C) Synthetic rubber has different monomers than natural rubber

Which of the following changes would decrease the rate at which a solid solute dissolves in a liquid solvent? A. Decreasing pressure B. Decreasing surface area C. Increasing rate of stirring D. Increasing temperature

Helium, neon, and argon are examples of A) metals B) metalloids C) noble gases D) transitional metals

How many moles of MgS2O3 are in 201 g of the compound

What is the process of discovery that allows us to link abservations with actual facts? Science Inquiry Mathematics Repetition

Elastic energy is stored when an object is stretched. Is this an example of potential or kinetic energy? A. Neither B. Both d C. Kinetic O D. Potential Reset Selection