Answer:
Bond angle is defined as the angle between two or more bonds or bonded electron pairs in a compound.
Explanation:
a) O−O−O angle of O3 - <120°
b) F−B−F angle of BF3 - 120°
c) F−O−F angle of OF2 - <109.5
d) Cl−Be−Cl angle of BeCl2 - 180°
e) F−P−F angle of PF3 - 109.5°
f) Cl−Si−Cl angle of SiCl4 - 90°
Answer:
When baking soda is mixed with vinegar, something new is formed. The mixture quickly foams up with carbon dioxide gas. If enough vinegar is used, all of the baking soda can be made to react and disappear into the vinegar solution.
Explanation:
Half-life can be given as the time required by the substance to reduce to half of its original concentration. The original mass of Uranium was 11.2 grams.
<h3>What is the expression of half-life?</h3>
The half-life for the reaction can be expressed as;

Where the final mass of the product is, 
The time for the reduction is given as, 
The half-life of the compound is given as, 
The original concentration (
) of the Uranium is given as,

The original mass of uranium-232 has been 11.2 grams.
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Lithium,
Electrons are 3
Protons are 3
Neutrons are 4