Chemistry, 16.07.2019 22:00 janeou17xn
Miners discover a new vein of metal in the mine they are excavating. they send a sample to your lab so you can determine what type of metal it is. you heat up a 2 kg block of the unknown metal from room temperature of 298 k until it melts at 1768 k. you measure that it takes 1.24 x 10^6 j of energy to melt the block. use the specific heats of various metals shown below to determine what metal the miners have discovered. aluminum: 904 j kg-1 k-1 nickel: 445 j kg-1 k-1 copper: 384 j kg-1 k-1 cobalt: 421 j kg-1 k-1 titanium: 520 j kg-1 k-1 a. cobalt b. copper c. aluminum d. nickel
Answers: 1
Chemistry, 21.06.2019 17:30
What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?
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Chemistry, 22.06.2019 04:40
*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system
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Chemistry, 22.06.2019 14:20
Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull
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Chemistry, 22.06.2019 21:00
In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.
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Miners discover a new vein of metal in the mine they are excavating. they send a sample to your lab...
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