Scientific theories and scientific laws are both based on extensive observations, experimentation, and reasoning. what is the primary factor that distinguishes scientific laws from scientific theories?

a. scientific laws have been observed without exception in specific conditions.
b. scientific laws frequently change over time.
c. scientific laws tend to be conceptual and rarely use mathematics.
d. scientific laws are always true, even when conditions change.

Explanation:

Scientific laws have been observed without exception in specific conditions.

Scientific laws have been observed without exception in specific conditions.

Explanation:

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the grams   of   barium that   are in   2.3 x 10^23   atoms of barium   is   52.4 g (answer c)

    calculation

mass = moles   of ba   x molar   mass of ba

  molar mass of ba from periodic table=   137.3 g/mol

  use the   avogadro's law   constant   to   calculate the moles of barium

  that   is     1 mole =   6.02   x 10^23 atoms

                    ? moles = 2.3 x 10^23   atoms

by cross   multiplication

=(1 mole   x 2.3x 10^23 atoms)   / 6.02   x10^23 atoms)=   0.382   moles

mass   is therefore = 137.3   g/mol x 0.382 mol = 52.4 ( answer c)

explanation: