Chemistry, 19.12.2021 09:00 keelynnbarrier
a chemist burns 100.0 g of chromium in excess oxygen. there's only one product, and it has a mass of 192.31 g. what is the empirical formula of the product?
Answers: 2
Chemistry, 21.06.2019 16:00
Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .
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Chemistry, 21.06.2019 21:30
Which is the layer underground where all empty spaces are filled with a combination of air and water ?
Answers: 1
Chemistry, 22.06.2019 10:00
How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?
Answers: 3
a chemist burns 100.0 g of chromium in excess oxygen. there's only one product, and it has a mass of...
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