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Chemistry, 13.01.2020 15:31 sofiakeogh1487
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verr. maj
in class worksheet 10 jan and homework 1
are
1. the universe is so large that astronomers talk about distance using a unit of length called parsec. there
3.0857 x 101 meters in a parsec. the north star, also called polaris, has been used for thousands of ye
navigational aide. the star is 133 parsecs from earth how long does it take light from polaris to reach earth
Answers: 1
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What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion
Answers: 3
Chemistry, 22.06.2019 23:30
With the largest atoms and the smallest number of valence electrons and with the smallest atoms and the greatest number of valence electrons are the most reactive. a. nonmetals; metals b. nonmetals; transition elements c. transition elements; metals d. metals; nonmetals
Answers: 3
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