Give the number of significant figures: 369,132,000 sec a. 0 b. 6 c. 9

A. 6

Explanation:

369 132 000 s

The important rules are

•Digits other than zero are significant

•Trailing zeroes before the decimal point are not significant

The decimal point is after the last zero, so the three zeroes are not significant,

Thus, the underlined digits in 369 132 000 are significant.

There are six significant figures in the measurement.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.