Answer:
Environmentalism
Explanation:
Environmental Science is the pursuit of knowledge about the environment, while Environmentalism as you know, "a social movement dedicated to protecting the natural world and people from undesirable changes".
There should be 3 significant figures in the average that you find because there are three significant figures in the weights you are using to find an average.
Answer:
Iodine molecules containing two atoms of iodine (I2) each are non-polar. That is because when iodine bonds with another iodine atom they attract electrons and share them equally. Thus neither water nor potassium permanganate dissolves in hexane.
Explanation:
Answer:
605.4 J
Explanation:
When a certain substance absorbs a certain amount of energy, its temperature increases according to the equation:
where
Q is the heat absorbed
m is the mass of the substance
C is the specific heat capacity of the substance
is the change in temperature
In this problem, we have:
m = 15.5 g is the mass of the piece of aluminium
C = 0.902 J/g⁰C is the specific heat of the aluminium
is the change in temperature of the aluminium (in fact, at thermal equilibrium, the block of aluminium reaches the same final temperature as the coffee)
Therefore, the energy absorbed is