Chemistry, 13.11.2020 01:00, gracie0818
A physical change can be distinguished from a chemical change because during a physical change- a. the properties of the substance may change, but no new substances are produced b. the properties of the substance change for only a short time but will return to their original state. c. an entirely new substance with new properties forms as a result of the change d. a new substance is produced, but the new substance has properties identical to the original substance
Answers: 3
Chemistry, 22.06.2019 04:00, queenkimm26
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
Answers: 3
Chemistry, 22.06.2019 18:00, jessicannoh5965
The fact that the total amount of energy in a system remains constant is a(n)
Answers: 1
Chemistry, 22.06.2019 19:30, periwinkleaqua72
What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2
Answers: 3
A physical change can be distinguished from a chemical change because during a physical change- a. t...
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