Chemistry, 21.07.2019 17:00 avastanleyy
Who reported four “element” classifications, but included some substances that were combinations of elements rather than true elements in his listing? henry moseley dmitri mendeleev antoine lavoisier johann dobereiner
Answers: 2
Chemistry, 22.06.2019 20:00
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
Chemistry, 22.06.2019 22:30
Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99
Answers: 3
Chemistry, 23.06.2019 13:30
What is matter? a. anything that has mass and takes up space b. something that has volume and takes up space. c. things that have energy and take up space d. things that take up space but don't have mass
Answers: 2
Who reported four “element” classifications, but included some substances that were combinations of...
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