Ionic compounds. because when in solid form they are held firmly in place therefore they cannot move to conduct electric current.
A measured value is expressed as a number along with a corresponding unit. The unit represents the dimension of the measured value.
For example:
- Length of an object can be expressed as, value + dimension. for example 10 m where 'm' is the dimension of length; meters
- Volume can be expressed as, value + dimension, for example, 10 L where L is the dimension of volume; Liters.
Ans C) Dimension
C. Walking on wet floors shows that Friction is undesirable
Answer is C. in a reaction mole stays the same but mass changes and since it produced gas it means now we have less mass.
