Chemistry, 09.07.2019 18:30 mateoperez496
John dalton believed which of the following about atoms? atoms are real even though they're invisible. all atoms of a single substance are identical. the atom could be divided into smaller parts. atoms of different substances differ by weight.
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Chemistry, 23.06.2019 02:00
Why does ammonia, nh3, behave as a base when it reacts with an acid? z
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Chemistry, 23.06.2019 10:30
Can anyone explain 1. review your spectrometry data and use the known elements to identify the star's composition. which unknown elements make up this star? justify your element selections. 2. in parts i and ii of the lab, what happened to the electrons of each element to produce the different colors of light? explain your answers using important terms from the lesson and information provided in the laboratory. 3. stars composed of heavier (more massive) elements are often slightly older than stars made predominantly from hydrogen and helium. based on your data, is the newly discovered star a younger star? explain your answer.
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Chemistry, 24.06.2019 02:00
What is a example of chemical weathering. a) erosion of land caused by receding glaciers. b)the layer of oxide formed on statues made of metal. c) deposition of silt along the bank of the mississippi river. d)weathering of rocks in a desert due to the rapid rise and fall of temperatures
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John dalton believed which of the following about atoms? atoms are real even though they're invisib...
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