List some of the materials used in the fabrication of compact fluorescent lights.
What will be an ideal response?
Examples include:
• Glass
• Nickel
• Copper
• Aluminum
• Tungsten
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Which of the following species is the oxidizing agent? 2 CuBr ? ? 2Cu + Br2
A. Cu B. CuBr C. Cu+ D. Br- E. Br2
Which of the following is the weakest?
A. an induced dipole-induced dipole attraction B. a dipole-induced dipole attraction C. an ion-dipole attraction D. a dipole-dipole attraction E. a chemical bond
At 10°C, which is more concentrated-a saturated solution of sodium nitrate, NaNO3, or a saturated solution of sodium chloride? (See figure shown above)
A. At 10°C, a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl. B. At 25°C, a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl. C. At 10°C, a saturated solution of sodium chloride, NaCl, is more concentrated than a saturated solution of sodium nitrate, NaNO3 D. At 20°C, a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl.
Your favorite song will sound the loudest
A) in your air-filled room. B) underwater. C) in outer space. D) behind a wall.