Answer:That all noble gases will have 8 valence electrons which makes a atom stable
Explanation:
Explanation:
Glass is an amorphous solid because its internal arrangement of crystals lacks shape and forms.
Amorphous means without form.
- When a molten substance crystallizes with enough time in a stable environment, it has a well ordered crystalline structure to it. Such materials are said to be crystalline in nature.
- Some substances like glass are formed by rapid cooling and its molecules are not properly formed.
- This makes them to lack a well ordered arrangement of their molecules.
- The long range ordered arrangement seen in crystalline materials is non-existent in glass.
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Here are the energy profile diagrams, p.s. sorry couldn’t find any plain paper!
Answer: Here are the complete options.
A spontaneous process is one that occurs very quickly. A process that is spontaneous in one direction is nonspontaneous in the other direction under a given set of conditions, provided the system is not at equilibrium. A spontaneous process is one that occurs without continuous input of energy from outside the system. A process is spontaneous if it must be continuously forced or driven.
The correct option is
A spontaneous process is one that occurs without continuous input of energy from outside the system.
A process that is spontaneous in one direction is nonspontaneous in the other direction under a given set of conditions, provided the system is not at equilibrium
Explanation:
spontaneous process is one that occurs without continuous input of energy from outside the system and occur on its own because spontaneous processes are thermodynamically favorable characterized by a decrease in the system's free energy, they do not need to be driven by an outside source of energy. Which means that the initial energy is higher than the final energy.
A process that is spontaneous in one direction is nonspontaneous in the other direction under a given set of conditions, provided the system is not at equilibrium which will result to The sign of ΔG will change from positive to negative (or vice versa) where T = ΔH/ΔS. In cases where ΔG is: negative
Answer: mass m = M·c·V
Explanation: M(CaCl2) = 110.98 g/mol, c= 0.15 mol/l,
n=m/M= cV, volume of Solution is not mentioned