1km=100,000cm so 0.828km=82,800cm
i hope this helps:)
Answer:
Explanation:
When carbon dioxide dissolves and reacts with water, the water and the gaseous 
reacts to form a dilute mixture solution of 
(carbonic acid ).
The reaction is 
This is a forward reaction. And the symbol 
shows that the reaction can be reversible. It means that the reaction can be carried in forward direction as well as in the backward direction.
The reaction attains chemical equilibrium until the reactants and the products no longer changes with time.
The carbonic acid can also dissociates into carbon dioxide and water in the backward direction.
Explanation:
Electron affinity is the energy released in adding an electron to a neutral atom in the gas phase. This is a measure of the readiness of an atom to gain an electron. When an atom gains an electron readily, it has a high electron affinity.
- The electronegativity is a property that combines the ability of its atom to lose and gain electrons.
- It is expressed as a number that describes the relative tendency with which the atoms of the element attracts valence electrons in a chemical bond.
Therefore , we see that an atom with a high electronegativity will have a very high affinity to gain electrons. It will want to attract electrons by all means to itself.
Learn more:
Electronegativity brainly.com/question/11932624
#learnwithBrainly
Al(OH)₃ + 3HCl = AlCl₃ + 3H₂O
C=0.200 mmol/mL
M{Al(OH)₃}=78.0 mg/mmol
m{Al(OH)₃}=55.0 mg
n{Al(OH)₃}=m{Al(OH)₃}/M{Al(OH)₃}
3n{Al(OH)₃}=n(HCl)=CV
3m{Al(OH)₃}/M{Al(OH)₃}=CV
V=3m{Al(OH)₃}/[CM{Al(OH)₃}]
V=3*55.0/[0.200*78.0]=10.6 mL
