natj5245 natj5245 20-02-2021 Chemistry contestada Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. Which two masses produce this answer? a) 210.10g+ 235.00g b) 210.100g + 235.10g c) 210.1g + 235.1g d) 210.10g + 235.10g