Chemistry, 09.07.2019 20:30 cindyramirez3140
To burn a piece of paper, why must the paper touch the flame? the products contain more energy than the reactants. the flame provides energy for bond formation in the piece of paper. the flame provides the energy needed to start breaking bonds in the paper.
Answers: 2
Chemistry, 21.06.2019 18:00
Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly
Answers: 2
Chemistry, 21.06.2019 20:40
Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o
Answers: 1
Chemistry, 22.06.2019 18:30
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o sncl2•4h2o sncl2•6h2o
Answers: 2
To burn a piece of paper, why must the paper touch the flame? the products contain more energy than...
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