Which of the following is the mixture
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Which one of the following laws directly expalins the law of coservation of mass
The substances that are composed of to or more different elements in fixed proportion by mass are called
The law of constant proportions was enunciated by
Masses of stars and galaxies are usually expressed in terms of
The minimum number of Non zero non collinear vectors required to produce a zero vector is
Distance of stars are measured in
Which of the following is a vector quantity