Physics, 28.09.2019 20:30 juicecarton
Alcium carbonate is a compound that is used to make chalk for drawing on rocks or pavement. one molecule has one atom of calcium (ca), one atom of carbon (c), and three atoms of oxygen (o). which is the correct way to write the chemical formula for calcium carbonate?
Answers: 1
Physics, 21.06.2019 14:30
Several processes form metal ore. match each process to its description. volcanic activity weathering hydrothermal energy rocks break down as they interact with air and water. arrowright density differences and other factors cause metals to concentrate in igneous rocks. arrowright seawater heats up from contact with hot rock, and metals dissolve in it. the water rises and contacts cooler water, causing metal ores to settle on the ocean floor. arrowright
Answers: 2
Physics, 23.06.2019 00:30
What practical value did astronomy offer to ancient civilizations?
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Physics, 23.06.2019 02:00
The gravitational force between pluto and charon is 3.61 × 1018 n. pluto has a mass of 1.3 × 1022 kg, which is only slightly greater than charon’s mass of 1.6 × 1021 kg. how far apart are pluto and charon? 2.0 × 107 m 2.4 × 1012 m 3.8 × 1014 m 5.8 × 1024 m
Answers: 1
Alcium carbonate is a compound that is used to make chalk for drawing on rocks or pavement. one mole...
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