Answer: A. The electronegativity of one atom is less than 1.7
Answer: Heterogenous mixtures are the ones in which we can see the different components clearly. Air is considered to be homogenous, because we don't see the different noble gases' particles floating around. Salt water is also homogenous, because salt dissolves almost completely into water, becoming hard to see without the proper equipment salt particles in it. Steel is also homogenous, since the metals that compose it are mixed during the heating. The only heterogenous would be soil, because we can see different particles in it, with different sizes, shapes, colors, etc without having to use special equipment.
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M/v=d > v=d*m
d= 7.73 g/cubic cm
m= 540 grams
v=7.73*540
volume is 4174.2
Answer:
A meridian is an imaginary arc on the Earth's surface from East to the West that connects all locations along it with a given latitude.
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