This much depends on the properties of the plastic.
Foam will reflect little and absorb much.
Hard plastic will reflect much and absorb little.
Soft plastic will absorb more than hard plastic and reflect more than foam.
Regards.
All solids absorb sound. Yes,aluminum does absorbe sound.
Ringing noise try hitting a drink can
1000 kg aluminium oxide contain 470,588 kg aluminium.
Aluminium is a metal (an element), not an alloy. This means that it's only made up of aluminium atoms. It has no other impurities in it. Aluminium ore is called bauxite. This has aluminium plus other substances in it, but aluminium on its own is a metal with just aluminium atoms in it.
If aluminium is burned in oxygen aluminium oxide is produced, not aluminium vapors.
aluminium+hydrochloric acid= aluminium chloride+hydrogen :)
it craps its pants
Ringing noise try hitting a drink can
Under "normal" conditions (room temperature and 1 bar of pressure) the speed of sound in aluminium is 6.42 km/s. Sound can potentially travel much faster through aluminium, but only if one pressurizes it a low.
While neither are particularly good for allowing sound through the aluminium would likely allow it through better being a lighter, less tightly packed, metal.
nutrients and water
yes
absorbe sun for warmth and eat bactiera.
red and blue
No, mirrors reflect the light instead of absorbing it.
Two moles of LiOH may absorbe one mole of CO2 that means 47.9g LiOH may absorbe 44.01g CO2 so 1 g may absorbe 44.01 divided by 47.9 = 0.919 g. 2LiOH + CO2 = Li2CO3 + H2O
proteins are absorbe din form of little particles.
Aluminium is actually an element, so the only element in aluminium is aluminium.