1) A girl stood on a beach and used a telescope to watch a boat sail away. As the boat went farther across the water, the girl saw:
OA) the entire boat, until she left the beach
B) only the boat's sails, because distance distorted the boat's appearance
C) only the boat's sails, because the horizon blocked the rest of the boat from sight
O D) the entire boat, because the line of sight curves with the Earth

What energy is it when you flip on a switch on a lamp

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

Benzonitrile (c6h5cn) is reduced to two different products depending on the reducing agent used. treatment with lithium aluminum hydride followed by water forms k, which has a molecular ion in its mass spectrum at 107 and the following ir absorptions: 3373, 3290, 3062, 2920, and 1600 cm-1. treatment with a milder reducing agent forms l, which has a molecular ion in its mass spectrum at 106 and the following ir absorptions: 3086, 2850, 2820, 2736, 1703, and 1600 cm-1. l shows fragments in its mass spectrum at m/z = 105 and 77. propose structures for k and l and choose an explanation for how this could be concluded.