Based on your data, how are elements arranged into chemical families?

Evaluate this exponential expression,8. (2 + 3)2 – 42

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

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.