Chemistry, 02.02.2020 08:42 naenae1405
What electromagnetic wave can cause skin cancer?
red light
yellow light
infrared radiation
ultraviolet radiation
Answers: 1
Chemistry, 21.06.2019 20:10
Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose
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Chemistry, 21.06.2019 22:30
Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?
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Chemistry, 21.06.2019 22:50
Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point
Answers: 1
Chemistry, 22.06.2019 09:00
Particles vibrate in a rigid structure and do not move relative to their neighbors.
Answers: 1
What electromagnetic wave can cause skin cancer?
red light
yellow light <...
red light
yellow light <...
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