Miguel?? Where are you

Modern weaponry has increased the number of deaths in wars and violent conflicts.

Remember to use the proper number of significant figures and leading zeros in all calculations. gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

Name the element in group 17, period 2. (periodic table)