Which experimental observation led scientists to speculate that ...

[WWatsford]

Which experimental observation led scientists to speculate that cathode rays contained particles that were constituents of all matter?
 
  A) The rays were deflected by electrical fields.
  B) The rays were deflected by magnetic fields.
  C) The rays were independent of the type of gas in the vacuum tube.
  D) All of the above provided evidence of the fundamental nature of cathode rays.

Question 2

How many grams of oxygen will react with 20 g of ammonia?
 
  NH3 + O2  NO + H2O
  A) 71 g
  B) 94 g
  C) 24 g
  D) 47 g

Question 3

Which of the following acids produces more than one H3O+ ion per molecule of acid when dissociated in water?
 
  A) hydrobromic acid
  B) carbonic acid
  C) hypochlorous acid
  D) acetic acid

Question 4

When 15 mL of ethanol is mixed with 55 mL of water, ethanol is the solute.
 
  Indicate whether the statement is true or false

[Koolkid240]

Answer to Question 1

C

Answer to Question 2

D

Answer to Question 3

B

Answer to Question 4

TRUE

[WWatsford]

Gracias!

[mohan]

Excellent