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Chemistry, 22.06.2019 20:00, bbyjean9974
State one important difference between a physical change and a chemical change?
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Chemistry, 23.06.2019 10:30, malum2009
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.
Answers: 2
Chemistry, 23.06.2019 11:30, danyelleearly12
Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?
Answers: 1
Chemistry, 23.06.2019 23:40, kayleevilla
Solution f has a ph of 11, and solution g has a ph of 13. how does the concentration of hydroxide ions in solution f differ from solution g? solution g has three times as many hydroxide ions as solution f. solution g has 100 times more hydroxide ions than solution f. solution f has 100 times more hydroxide ions than solution g. solution f has three times as many hydroxide ions as solution g.
Answers: 3
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