Chemistry, 21.07.2019 12:30 hjeffrey168
When a piece of steel wool is burned it gains mass. which explanation is consistent with the law of conservation of mass? a) matter was created during the chemical reaction. b) heat changed into matter. c) a chemical change did not take place. d) matter from the air combined with the steel wool.
Answers: 2
Chemistry, 21.06.2019 19:00, eweqwoewoji
Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion
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Chemistry, 22.06.2019 04:00, speris1443
Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)
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Chemistry, 22.06.2019 09:00, SilverTheAmarok
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
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