Question

what are significant no?. ..... write significant no. present in * 2.00
*0.00456​

Answer 1

Answer:

Significant figures present in:

2.00 - 1 Significant Figures

0.00456 - 3 Significant Figures

.

.

.

I hope it will help!!

Answer 2

Answer:

significant

          If the mass of an object is measured as 15.8 g, this means that the mass is known to lie between 15.7 and 15.9g. There are 3 significant figures in 15.8.  THE INSTRUMENT USED TO MAKE THIS  MASS MEASUREMENT CAN ONLY DETECT DIFFERENCES OF 0.1G OR 100 MG.

          If the mass of an object is measured as 12.3456 g, this means that the  mass is known to lie between 12.3455 and 12.3457 g. There are 6 significant figures in 12.3456. THE INSTRUMENT USED TO MAKE THIS MASS MEASUREMENT CAN ONLY DETECT DIFFERENCES OF 0.1 MG OR 100 MICROGRAMS.

Overall, you are counting all of the "certain" digits and a final digit that is uncertain, but nevertheless significant.