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Skills Practice Answers

Skills Practice Answers. Skills Practice 1. 9,434,880 mL 17.8 cases 0.333 pallet a) 0.1560 m b) 4.1x10 10 c) 92,000 μ m d) 91,600 nm a) 2.229x10 7 b) 8.07x10 6 c) 5.41x10 20 d) 1.12x10 7 a) 2.300021x10 10 b) 3.51x10 -9 a) 235,400 b) 0.000000003400. Skills Practice 2. 325.2

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Skills Practice Answers

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  1. Skills Practice Answers

  2. 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

  3. Skills Practice 2 • 325.2 • 18,000 • 0.0175 • 0.790 • 28,910,000 • 27 • 4.9x1012 • 1.86x105

  4. 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)

  5. 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

  6. Skills Practice 10 • Ground state: the normal energy level that an electron occupies. Excited state: when an electron has absorbed energy to occupy a higher energy level. • 7.11x10-8 m • 8.62x10-20 J • 3.68x10-19 J • a) 8.52x1014 Hz b) 5.65x10-19 J • f=7.68x1014 Hz wavelength= 3.91x10-7 m

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