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Chemistry, 21.06.2019 17:30
One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms
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Chemistry, 22.06.2019 21:30
Describe at least two advantages and two disadvantages of using hydropower as a source of energy.
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Chemistry, 23.06.2019 04:00
Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese
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Chemistry, 23.06.2019 05:30
The term gas is limited to those substances that exist in the gaseous state at
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Drawing organic chemistry questions...
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