1a) 2 properties that glass and plastic always share

1 answer:

4 0

4)There's no single substance called "plastic." That term covers many materials made from an array of organic and inorganic compounds. Substances are often added to plastic to help shape or stabilize it. Two of these plasticizers arebisphenol-A (BPA), added to make clear, hard plasticphthalates, added to make plastic soft and flexible

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Why are familiar objects such as pens and paper clips not commonly counted in moles?

Anton [14]

Well ask yourself why don't we count it in moles and you should get your answer.

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Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming

Yakvenalex [24]

Answer:

This would support Dalton's postulates that proposed the atoms are indivisible because no small particles are involved.

Explanation:

Experiment using the gas discharge tube by J.J Thomson led to the discovery of cathode rays which are now known as electrons.

Primarily, Thomson's experiment led to the discovery of cathode rays, electrons, as subatomic particles.

If the size of the atoms observed at the cathode is the same as that of the rays,we can conclude that the particles of the rays are the simplest form of matter we can have. This would suggest that the atom is indeed the smallest indivisible particle of a matter according to Dalton.

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A 2.550 x 10^−2 M solution of glycerol (C3H8O3) in water is at 20.0°C. The sample was created by dissolving a sample of C3H8O3 i

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Answer:

$2.557\times 10^{-2}\ molal.$