Which of the following best explains why J. J Thompson's Plum Pudding model had to be revised?

In an experiment on obedience to authority, one subject tells another that the shocks might not be real. Which issue of invalidity is present in this scenario? A) John Henry effect B) contamination C) placebo effect D) Hawthorne effect

How could an increase in industrial activity in developing nations contribute to global climate change?

The carton fe3 + is formed when

Which chemical reaction is associated with a fire? a. reduction b. precipitation c. oxidation d. none of the above?

All of the following are chemical changes: baking a cake, rusting a nail, and forming copper nitrate from copper wire and silver nitrate. True False

Which state of matter isn't typically found on earth?

Both black and white road surfaces absorb sunlight. the warmer road surface at the end of a sunny day is the

Which information in the periodic table indicates the number of protons in an atom? A. the position of the element in its column B. the element's chemical symbol C. the element's atomic mass D. the element's atomic number

What were the expected results of Rutherford's gold foil experiment, based on Thomson's model of the atom? How did the real results of the gold foil experiment change the accepted model of the atom?

How many neutrons are in titanium