How do you identify producers and consumers?

What role does the wire play in voltaic cell? a) It allows electrons to flow from the anode to the cathode. b) It allows migration of ions from one half-cell to the other. c) It connects to the salt bridge. d) It creates the reduction reaction.

What do you call the group or family of elements in the second column from the right? A. halogens B. noble gasses

Who was the first man to walk on the moon with the Apollo 11 mission? Newton Michael Jordan Neil Armstrong Edward White ll

Why are water molecules polar? select one: a. they contain two kinds of atoms. b. the electrons in the covalent bonds spend more time closer to the oxygen nucleus. c. the hydrogen bonds are weak. d. they have covalent bonds?

How many moles of CO2 are produced when 84.0 mol O2 completely react?

Complete the reactions to show how butanoic acid may be converted to phenyl propyl ketone.

As a sample of the radioactive isotope 131I decays, its half-life (1) decreases (2) increases (3) remains the same

How many Joules of energy are required to change 10.0 gram of ice at - 2.0 C to water at 20.0 C? (use your constants) 440 J 66,000 J 880 4220 J

Why are Van der Waals forces important? A) They determine how strong dipole moments will be in polar covalent molecules B) They are the strongest type of intermolecular force that can act on polar and non-polar molecules C) They are primary

When heat is added to or removed from a substance, it may change its state. What state will most likely result if heat is added to a liquid?