dylannhandy
24.02.2020 •
Chemistry
These items concern safety in the Determination of an Equilibrium Constant Experiment. (Select all that apply.) (a) Which of the following are hazardous properties of nitric acid? It's highly flammable. It's a potent carcinogen (causes cancer). It's corrosive. It's basic. It's an oxidant. It's a teratogen (causes birth defects). (b) Which of the following are hazardous properties of sodium thiocyanate? It's a teratogen (causes birth defects). It's highly flammable. It's an irritant. It's acidic. It's basic. It's a potent carcinogen (causes cancer). It's toxic. (c) If any of the solutions in this experiment are spilled on skin or clothing, what is the first thing to do? Flush the area with water. Clean up any spills on the floor or at your lab bench. Go to the TA and tell him/her about the spill. Neutralize the chemical with sodium thiosulfate solution.
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Ответ:
Light pollution is excessive, misdirected or inappropriate outdoor lighting. Too much light pollution washes out the view of the Universe, increasing energy consumption, interferes with astronomical research, disrupts ecosystems, and affects the health and safety of humans and wildlife.
Explanation:
Light pollution radically alters their nighttime environment by turning night into day. ... “Predators use light to hunt, and prey species use darkness as cover,” Kyba explains “Near cities, cloudy skies are now hundreds, or even thousands of times brighter than they were 200 years ago.