The principal difference between a gas and a plasma has to do ...

[Tazate]

The principal difference between a gas and a plasma has to do with
 
  1) the kinds of elements involved,
  2) interatomic spacing,
  3) electrical conduction,
  4) fluid pressure,
  5) the proportion of antimatter,
 
  while the principal difference between a liquid and a gas has to do with
  6) the kinds of elements involved.
  7) interatomic spacing.
  8) electrical conduction.
  9) fluid pressure.
  10) the proportion of antimatter.

Question 2

A 10-kg block has twice the density of water. Compared to 10 kg of water, its volume is
 
  1) as much,
  2) half as much,
  3) twice as much,
 
  and when suspended in water its mass will seem to be
  4) 0 kg.
  5) 3.33 kg.
  6) 5 kg.
  7) 10 kg.
  8) none of these.

[polinasid]

Answer to Question 1

Answer: 3, 7

Answer to Question 2

Answer: 2, 6

[Tazate]

Gracias!

[raenoj]

TYSM