Which element in each pair has atoms with a larger atomic radius? a: lithium or sodium b: magnesium or strontium c: carbon or germanium

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

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures