<em>Advantages</em>
Chemistry helps you to understand the world around you.
Basic knowledge of chemistry helps you to read and understand product labels.
Chemistry can help you make informed decisions.
Chemistry is at the heart of cooking.
A command of chemistry can help keep you safe!
<em>Disadvantages</em><em> </em>
It isn't a sustainable form of energy.
It can be expensive.
Some forms of chemical energy are quite rare.
It can produce harmful waste.
It can be used to create devastating weapons.
It offers short-term benefits for long-term consequences.
Produces OH - ions when added to water acid
The final temperature : T₂ = 680.625 K
<h3>Further explanation</h3>
Given
V₁=240 ml
T₁ = 90 + 273 = 363 K
V₂ = 450 ml
Required
The final temperature
Solution
Charles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
Input the value :
T₂ = V₂T₁/V₁
T₂ = 450 x 363 / 240
T₂ = 680.625 K
Answer : The density in cg/L is 
.
Solution :
Conversions : 
Conversion of 'g' to 'cg' : 
Conversion of 'L' to 'ml' : 
Given density = 
After conversion,
Density =
Therefore, the density in cg/L is .
Answer:
The best-known threat comes from human pressures, driven by agriculture, residential, and commercial expansion into cactus habitats. But the worst offender, the scientists were surprised to find, is the illegal trade of cactus plants and seeds, affecting 47 percent of the threatened species. There are lots of different variations of cacti.
