Answer:
D - chemical and physical
Explanation:
Only chemical and physical changes can reach the level of dynamic equilibrium. Nuclear reactions cannot reach dynamic equilibrium.
- A system is in dynamic equilibrium when the rate of forward reaction is the same as that of backward reaction in a reversible reaction.
- Nuclear reactions cannot be reversed.
- Dynamic equilibrium is prominent in chemical reactions. It is commonly found that as a reaction occurs, the backward and forward reactions can reach equilibrium levels.
- In physical changes, this can also occur when certain conditions of pressure and temperatures are satisfied.
Answer:
F has a smaller radius than F− due to an additional electron that causes greater repulsion in F−
Explanation:
- F is a non-metal in a group of the periodic table called halogens.
- F reacts by gaining electrons to form a negatively charged ion F- which has an additional electron.
- Atomic radius is the radius of an atom such an F atom while the ionic radius is the radius of an ion formed when an atom gains or loses electron(s).
- The atomic radius of F is smaller than the ionic radius of F- due to the presence of an additional electron in F- which increases the repulsion and decreases the attraction by the nucleus.
You might learn the cycles of the moon the cycle of a bug from larva to death It depends which cycle you are thinking about
Answer:
10000000000
Explanation:
1 + 1 = 2 and if you divide 2 by 2 the answer is 1 and 1 x 100 = 100
and if you add 8 zeros to 100 the answer is 10000000000
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Answer:
The copper oxide can then react with the hydrogen gas to form the copper metal and water. When the funnel is removed from the hydrogen stream, the copper was still be warm enough to be oxidized by the air again.
Explanation:
