he is a good scientist because he postulated that chemical reactions resulted in the rearrangement of the reacting atoms
49.8 g should be the balance read.
Explanation:
Adding the mass of the evaporation dish 44.8 g with the mass of the copper 5 g you obtain 49.8 g.
On the balance you put first the evaporation dish (or a watch glass) over which you add copper until you reach 49.8 g.
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Hi,
The answer should be C.
Hope this helps, if you’d like further explanation please let me know.
The first major contributor to the Sun's apparent motion is the fact that Earth orbits the Sun while tilted on its axis. The Earth's axial tilt of approximately 23.5° ensures that observers at different locations will see the Sun reach higher-or-lower positions above the horizon throughout the year.
hope this helps ^^
