Answer:
It is soft and white. It has a low melting and boiling point, a good conductor electricity, and reacts with water. Furthermore, it is also highly reactive, malleable, and ductile.
Explanation:
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Answer:
The concentration of an anthracene solution is 
Explanation:
From the question we are told that
The incident beam
is 
The fluorescence intensity is 
The length of the medium is b = 0.875 cm
The molar extinction coefficient is 
The proportionality constant k = 0.30
According to Lambert law the Absorbance of the anthracene solution is mathematically represented as

Where 
and A is the Absorbance
Substituting value


Generally beers law can be represented mathematically as

where c is the concentration of an anthracene solution
Making c the subject of the formula

Substituting 0.875 cm for length = b ,
We have


Answer:Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the group, lead tends to bond with itself; it can form chains and polyhedral structures.
I think that it’s A i have done a test on this before so I think it’s A