Astudent observed a chemical reaction in which the mass of the products was measured to be less than the mass of the reactants. how can this be explained? a) the mass of the products is always less than the mass of the reactants in a chemical reaction b) some of the products must have escaped undetected c) the law of conversation of mass does not apply to chemical reactions d) some of the matter was converted into energy during the reaction
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Chemistry, 22.06.2019 09:00
Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2
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Chemistry, 22.06.2019 16:30
4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:
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Chemistry, 22.06.2019 17:30
Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".
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Chemistry, 23.06.2019 01:00
Who examines and coordinates the cleanup of polluted sites?
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Astudent observed a chemical reaction in which the mass of the products was measured to be less than...
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