Chemistry, 18.10.2019 21:30 crimsonkiss
Astudent has two substances at a lab table. one substance is iron pyrite (fool's gold) and the other is real gold. after placing a 20.0-gram sample of iron pyrite into 40.0 ml of water in a graduated cylinder, it displaces 4.0 ml of water. the density of real gold is almost 4 times larger than iron pyrite. if a 20.0-gram sample of real gold is placed into the same amount of water, approximately how much water will be displaced?
Answers: 3
Chemistry, 21.06.2019 22:30
Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.
Answers: 1
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Chemistry, 22.06.2019 21:00
Once similarity and one difference between a mixture of elements and a mixture of compounds
Answers: 3
Astudent has two substances at a lab table. one substance is iron pyrite (fool's gold) and the other...
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