The shiny surfaces of metals have most to do with *1 pointMetals' relatively high density. A resonant frequency of electrons in the metal. The fact that light reflects from metals. The free electrons in metal atoms.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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