Question

directions: express the results of the following two calculations to the correct number of significant figures and with the correct units. please be sure to highlight and underline your final answer! 12.) 3.21 g + 0.3 g (2 points)

Explanation:

Step1: Perform the addition

$3.21\ g+ 0.3\ g = 3.51\ g$

Step2: Round to correct significant figures

The number 0.3 has one - decimal - place precision. When adding, we round the result to the same decimal - place precision as the number with the least decimal - place precision among the values being added. So, 3.51 g rounds to 3.5 g.

Answer:

$\underline{3.5\ g}$