Chemistry, 20.10.2020 20:01 damiangibson2
Burning a piece of wood in fire can be best described as a
chemical change because the atoms in wood change their state.
O physical change because the atoms in wood are turned into a gaseous product.
chemical change because the atoms in wood and oxygen are rearranged.
O physical change because the atoms in wood are turned into black ash.
Answers: 1
Chemistry, 22.06.2019 07:00
6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space
Answers: 2
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 23.06.2019 05:00
If 15 drops of ethanol from a medicine dropper weigh 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? density of ethanol is ethanol is 0.80g/ml.
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Burning a piece of wood in fire can be best described as a
chemical change because the atoms in woo...
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