Determine whether or not each chemical formula is an empirical formula. CaCO3 Choose... C6H12O6 Choose... NaMnO4 Choose... Ba3(PO4)2 Choose... K2C2O4 Choose...

CaCO3: empirical.

C6H12O6: not empirical.

NaMnO4: empirical.

Ba3(PO4)2: empirical.

K2C2O4: not empirical.

Explanation:

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In this case, since the empirical formula of a chemical compound is the smallest whole number ratio of atoms of each element in the compound, for each compound we proceed as follows:

CaCO3: it is empirical since the subscripts there cannot be reduced anymore.

C6H12O6: not empirical since the smallest whole number ratio of atoms would be CH2O.

NaMnO4: it is empirical since the subscripts there cannot be reduced anymore.

Ba3(PO4)2: it is empirical since the subscripts there cannot be reduced anymore.

K2C2O4: not empirical since the smallest whole number ratio of atoms would be KCO2.

Best regards.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

give me abc and i will get it for u.