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1 SECTION A [60 Marks] Answer all questions in this section. The time suggested to complete this section is 90 minutes. 1. Table 1 shows the proton number and nucleon number…
Slide 1 Chemical Formulas and Composition Stoichiometry Chapter 2 Slide 2 Stoichiometry Describes the ___________ relationships among elements in compounds (composition stoichiometry)…
Chapter 7 Chapter 7 Dmitri Mendeleev arranged periodic table according to atomic masses chemical periodicity- predicting a property based on an element’s position within…
Lesson 2 Molar Quantities Read pages: 55-57 HW â More Mole Problems â Yuk Molar mass answer key Question 1 Question 3 Na = 22.99g/mol a) Sr(CN)2 = 139.66g/mol Se = 78.96…
Chemistry of Life Chapter 4 Matter What all material is made Atoms p+, n0, e- Isotopes: atoms w/same atomic number, different atomic mass. Decay at different rates Used…