Chemistry, 20.04.2021 21:30 PONBallfordM89
What is the density of an unknown compound with a volume of 23 cm3 and a mass of 430 g? (/3)
Answers: 1
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Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this
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Chemistry, 23.06.2019 05:00
110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?
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Chemistry, 23.06.2019 07:10
1) a light bulb takes in 30 of energy per second. it transfers 3j as use energy. calculate the efficiency. second. it transfers 3j as useful light energy and 27j as heat energy. calculate the efficiency
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Chemistry, 23.06.2019 08:30
Of element x has 22 protons, how many electrons does it have
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What is the density of an unknown compound with a volume of 23 cm3 and a mass of 430 g? (/3)...
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