Quantitative Chemistry When we do experiments to measure something in Chemistry, we: • • Repeat experiments (usually 3 times) to improve the reliability of the results,…

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Slide 1ATOMICSTRUCTURE Semester Chemistry Unit 2 KNOCKHARDY PUBLISHING Slide 2 LecturePLUS Timberlake2 Atomic Theory Atoms are building blocks of elements Similar atoms in…

Slide 1Do now! Have a look through your test! Slide 2 Moles! Slide 3 Equal masses of different elements will contain different numbers of atoms (as atoms of different elements…

Slide 1Unit One Chemistry – Horsham College Chapter 6 – VCE Chemistry Measurement in Chemistry Slide 2 Atomic Weight As chemists gradually accumulated data on elements,…

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1. How many molecules of water are there in a 500 ml bottle of mineral water? 2. This is the number of water molecules in 500 ml of water give or take a few. 3. This is the…

Chapter 1 Self-Check 9 CHAPTER 9 Counting Atoms: The Mole While studying this chapter, tick off each item after your teacher has covered it. A. What I should know: That chemists…

Atomic Structure  The nucleus contains protons (positively charged) and neutrons (neutrally charged).  The atomic number (proton number) is equal to the number of protons…

Slide 1When there are 2 possible products The less reactive forms at the electrode C2 Chemistry An atom: Number of Protons = Number of Electrons Mass number = Protons + Neutrons…