<span>Too much B. potassium can
slow and eventually stop the heart, and supplements should be taken only
under the care of a physician.
</span>
Answer:
IONIC BOND
Explanation:
the force between oppositely charged IONS is and IONIC BOND
Explanation:
1. Spontaneous as written at all temperatures
C. When ΔH is negative and ΔS is positive, the sign of ΔG will always be negative, and the reaction will be spontaneous at all temperatures.
2. Spontaneous in reverse at all temperatures
A. When ΔH is positive and ΔS is negative, the sign of ΔG will always be positive, and the reaction can never be spontaneous.
3. Spontaneous as written above a certain temperature
B. ΔH is positive and ΔS is positive - an endothermic reaction (positive ΔH) that also displays an increase in entropy (positive ΔS). It is the entropy term that favors the reaction. Therefore, as the temperature increases, the TΔS term in the Gibbs free energy equation will begin to predominate and ΔG will become negative.
4. Spontaneous as written below a certain temperature
D. ΔH negative and ΔS is negative - When the reaction is exothermic (negative ΔH) but undergoes a decrease in entropy (negative ΔS), it is the enthalpy term which favors the reaction. In this case, a spontaneous reaction is dependent upon the TΔS term being small relative to the ΔH term, so that ΔG is negative. The freezing of water is an example of this type of process. It is spontaneous only at a relatively low temperature.
<span>Non-stoichiometric defects are </span>compounds which contain the combining elements in a ratio different from that required by their stoichiometric formula. The solids with metal excess <span>defect </span>contain metal in excess to the stoichiometric ratio. Such defect is caused due to either of the following reasons:
1. <span>Metal excess Defect due to Anionic Vacancies:
In this, </span>negative ions may be missing from their lattice sites leaving holes in
which the electrons remain entrapped to maintain the electrical
neutrality.
2. Metal excess defect due to the presence of extra cations at interstitial sites:
In this case, there are extra positive ions occupying interstitial
sites and the electrons in another interstitial sites to maintain
electrical neutrality. The defect may be visualized as the loss of
non-metal atoms which leave their electrons behind. The excess metal
ions occupy interstitial positions.
Answer:
5.6×10²
Explanation:
move the decimal to where there's only one one's digit and count how many times you moved the decimal place and that's your exponent
