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Dima020 [189]
3 years ago
15

HELP PLS.What are the characteristics of the three states of matter?

Physics
2 answers:
vredina [299]3 years ago
5 0

Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles. Hopefully this helps:)

Kisachek [45]3 years ago
4 0

Matter can exist in one of three main states

-solid

- liquid

- gas

Solid matter is composed of tightly packed particles.

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The aluminum atom______electrons to form an ion.<br> The ion that is formed is______.
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The aluminum atom_loses_____electrons to form an ion.

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3 0
3 years ago
Read 2 more answers
Which of the following has the lowest U value?
jarptica [38.1K]

Answer:

c. expanded polyurethane

Explanation:

Thermal performance of a building fabric is measured in terms of heat loss and is expressed as U-value or R-value. U-value is the rate of heat transferred through a structure divided by the difference in temperature across the structure with a unit of measurement of W/m²K.You can calculate the U-value of a by getting the reciprocal of the sum of thermal resistances , R, making the building material.

If you have the value of R, then U=1/R

Material                         size            R                      U

plywood                          1"              1.25                0.8

Poured concrete            2"              0.99               1.010

Expanded polyurethane  1"            6.5                   0.1538

Asbestos shingles            1"             0.03                33.33

The material with lowest U-value is expanded polyurethane

4 0
3 years ago
Which statement describes what happens when a balloon is rubbed with a wool cloth?
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Electrons move from the atoms in the cloth to the atoms in the balloon, causing the balloon to have a negative charge

Hope this helps!!!
8 0
3 years ago
Read 2 more answers
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