Chemistry, 12.12.2019 19:31 elizabethburkha
1. according to the fossil record, the first land plants were most likely pine trees. moss and ferns. flowering plants. 2. scientists have found fossils of pine cones, seeds, and leaves with veins. more than likely scientists would also find fossilized remains of fish. dinosaurs. mammals 3. lots of shell fossils and no plant fossils tell us that earth probably mostly covered with oceans and little dry land. true
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Chemistry, 22.06.2019 04:30
Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water
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Chemistry, 22.06.2019 22:30
Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?
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Chemistry, 22.06.2019 22:30
What is a number added in front of a formula in order to balance the equation
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1. according to the fossil record, the first land plants were most likely pine trees. moss and ferns...
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