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Chemistry, 22.06.2019 08:00
What are the similarities of physical and chemical change ?
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Chemistry, 22.06.2019 10:30
Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
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Chemistry, 23.06.2019 00:30
Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction
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Chemistry, 23.06.2019 01:00
Which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be x. the difference of z and y must be 2x. the difference of z and y must be x
Answers: 1
Is a crumbled piece of paper weight, mass, density or appearance changed? i think density....
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