The
balanced half-reaction: Cr⁴⁺(aq)+ 4e⁻ →
Cr(s).
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Chromium(IV) cations gain four electrons and became solid chromium with neutral charge.
</span>Reduction is lowering oxidation number because element or ions gain electrons.
Oxidation reaction is increasing of oxidation number of element, because
element or ion lost electrons in chemical reaction.
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<span>It rises confidence for the reason that the more times you conduct the similar experiment over and over should either demonstrate your hypothesis right and wrong and remove any random incidences that might touch your results. Meaning it permits to have a more accurate measure or conclusion.</span>
The trends and exceptions to the trends in ionization energy observed includes;
B, ionization energy tends to increase across a period because the nuclear charge increases.
C, ionization energy tends to increase across a period because electrons are added to the same main energy level.
E, The ionization energies of elements in Group 13 tend to be lower than the elements in Group 2 because the full s orbital shields the electron, in the p orbital from the nucleus.
Ionization energies measure the tendency of a neutral atom to resist the loss of electrons. It takes a considerable amount of energy, for example to remove an electron from a neutral fluorine atom to form a positively charged ion. <span />
Answer:
Follows are the solution to this question:
Explanation:
- Fact: In this, the ice is melted at 0 ° C.
- law: It is used to repeated experiments consistently showed which objects marked to both the contrary attract each law.
- Hypothesis: If carbohydrates and nitrogen are combined at 1500 ° C, they interact with one another.
- Theory: Protons, nuclei, or ions are made of Atoms. As these molecules could not be seen explicitly, such legal structure several experimental observations.
