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This resource offers a structured practice session designed for chemistry students, focusing on concepts such as atomic mass, isotopes, and molecular calculations. Students will encounter problems involving various units and conversions, such as mL, cases, and nm, while gaining an understanding of atomic structure, especially isotopes. Engage with practical examples and exercises that reinforce learning through problem-solving. Perfect for exam preparation or self-study aimed at mastering key chemistry skills!
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Skills Practice 1 • 9,434,880 mL • 17.8 cases • 0.333 pallet • a) 0.1560 m b) 4.1x1010 c) 92,000 μm d) 91,600 nm • a) 2.229x107 b) 8.07x106 c) 5.41x1020 d) 1.12x107 • a) 2.300021x1010 b) 3.51x10-9 • a) 235,400 b) 0.000000003400
Skills Practice 2 • 325.2 • 18,000 • 0.0175 • 0.790 • 28,910,000 • 27 • 4.9x1012 • 1.86x105
Skills Practice 8 • a) 21 b) Scandium (Sc) c) 22 • Atoms of the same element (having the same number of protons) with a different number of neutrons. • a) -2 b) sulfur c) 17 • 1;3 • +2 • 30 • B) ions • Strontium (Sr)
Skills Practice 9 • a) 74.92 amu b) Arsenic (As) • a) 51.99 amu b) Chromium (Cr) • The most abundant is the one with a mass of 40.00 amu. • 41.996 amu
