<span>physical changes
Physical changes happen when something undergoes a transformation that does not alter their total inward arrangement. This appears differently in relation to the idea of compound change in which the creation of a substance changes or at least one substances consolidate or separate to frame a new one</span>
D is correct answer.
Ernest Rutherford is a name of the scientist who is the first proposed that atoms have a nucleus.
Hope it helped you.
-Charlie
The decomposition of the given compound, Pb(NO3)2, will yield 3 different simpler compounds which are lead oxide (PbO), nitrogen dioxide (NO2), and oxygen (O2). Based on the given chemical formula, the ionic component of the compound are Pb²⁺ and 2 ions of NO₃²⁻.
The phases of these compounds will have to be solid and aqueous.
Because its molecules can slide around each other, a liquid<span> has the ability to flow. The resistance to such flow is called the </span>viscosity<span>. For organic liquids, as the chain increases the viscosity increases as well due to the bonding that is present. Therefore, the ranking should be as follows:
</span><span>CH3CH2CH2CH2CH2CH2CH2CH2CH2CH3
</span><span>CH3CH2CH2CH2CH2CH2CH2CH3
</span><span>CH3CH2CH2CH2CH2CH3 </span>
Metals are all in the center of the periodic table and are all made up of metals