1. How many atoms are in 2 moles of Iron?

2. How many atoms are in 3 moles of Lead?

3. How many atoms are in 0.75 moles of Sodium?

4. How many atoms are there in 21g of Lithium?

5. How many molecules are in 1.5 moles of CO2?

6. How many molecules of water are there in 45g of water?

This active feature of earth's crust in building mountain ranges as well as islands. this feature is a a) cavern. b) earthquake. c) mountain. d) volcano.

Which of these conditions most likely produces an unstable isotope?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.