Chemistry, 01.12.2020 18:40 lafayette7727
45 POINTS
Isabella finds a sample of an unknown metal. It has a luster and is silvery in 2 points
appearance. When she determined its volume, it was 25.0 ml. Its mass
was measured at 177.9 g. Using the chart, determine the identity of the
unknown metal. *
Mass
Tin Ball
25.5 9
Nickel Ball 31.29
Aluminum Ball 9.459
Zinc Ball
24.99
Initial Volume Final Volume
30.0 mL 33.5 mL
30.0 mL 33.5 mL
30.0 mL 33.5 mL
30.0 mL
33.5 ml
A) Tin
B) Nickel
C) Aluminum
D) Zinc
Answers: 2
Chemistry, 22.06.2019 07:30
Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?
Answers: 1
Chemistry, 22.06.2019 09:00
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.
Answers: 1
Chemistry, 22.06.2019 17:30
I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!
Answers: 1
Chemistry, 22.06.2019 21:40
Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.
Answers: 2
45 POINTS
Isabella finds a sample of an unknown metal. It has a luster and is silvery in 2 points
Mathematics, 02.02.2021 17:20
History, 02.02.2021 17:20
SAT, 02.02.2021 17:20
History, 02.02.2021 17:20
Mathematics, 02.02.2021 17:20
Mathematics, 02.02.2021 17:20
Mathematics, 02.02.2021 17:20
Mathematics, 02.02.2021 17:20
Biology, 02.02.2021 17:20