Explanation

Inner transition elements are the elements located in the f-block of the periodic table.

These elements are divided into two series: lanthanides and actinides

Therefore, both lanthanides and actinides are considered inner transition elements. 

Explanation

While manure is a fertilizer, it's considered organic because it's derived from decomposed organic matter (like animal waste or plant material). 

Explanation

Avogadro's number represents the specific quantity of particles (atoms, molecules, ions, or electrons) contained in one mole of a substance.

It's a large constant value approximately equal to 6.022 x 10^23. 

Explanation

Each mole of CO₂ contains 2 atoms of oxygen, which is 2 × 16 = 32 g of oxygen.

So, if 32 g of oxygen is in 1 mole of CO₂, then:

16 g of oxygen = 16 / 32 = 0.5 moles of CO₂

Explanation

"6.022 × 10²³ atoms of carbon"

Each CO₂ molecule contains 1 carbon atom

So, 1 mole of CO₂ has 6.022 × 10²³ carbon atoms

Explanation

 Molecular mass of water (H₂O) = 2(1) + 16 = 18 g/mol

- This means 18 grams of water contains 1 mole of water molecules.  

Explanation

Molten NaCl conducts electricity because of the presence of free ions. 

When sodium chloride (NaCl) melts, the ionic bonds holding the sodium (Na+) and chloride (Cl-) ions together break, allowing them to move freely within the liquid.

These mobile ions can carry electrical charge, thus enabling the molten salt to conduct electricity. 

Explanation

When water freezes, it forms an open hexagonal structure due to hydrogen bonding.

This structure makes ice less dense than liquid water, which is why ice floats on water.

Explanation

The core principle behind a hydrogen bomb is the fusion of light atomic nuclei.

Specifically isotopes of hydrogen (deuterium and tritium), under extremely high temperatures and pressures. 

Explanation

Milk is a mixture, not a compound — it contains water, fats, proteins, etc., physically combined.

Chalk (CaCO₃), Ammonia (NH₃), and Table Salt (NaCl) are pure compounds with fixed chemical formulas.