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3 years ago

What is the uses of plastic?

Chemistry

2 answers:

Alex Ar [27]3 years ago

7 0

Answer:

Plastic is used across almost every sector, including to produce packaging, in building and construction, in textiles, consumer products, transportation, electrical and electronics and industrial machinery.

Irina18 [472]3 years ago

3 0

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How does the arrangement of the particles in a gas compare to that of a solid

blondinia [14]

The particles of the gases are apart from each other and they are movingoing freely, However, in the solid the particles are very close to each other and there is no spaces between them,

7 0

3 years ago

if the temperature of this equilibrium was increased, what would happen to the equilibrium yield of chlorine?

NARA [144]

Answer:

the temperature of the system decreases

3 0

2 years ago

How many milliliters of vinegar must be added to 20 ml of a 10 vinegar solution to make it a 25% vinegar solution?

telo118 [61]

X= How much.
x+.10×20=.25(x+20)
use this equation to solve
then plug answer back in to check if it's right
the answer should be 4ml.

5 0

4 years ago

Arrhenius acids are 1. substances that produce hydrogen atoms in solution. 2. substances that produce hydronium ions in aqueous

ElenaW [278]

Answer:

<h2>1 ) substances that produce hydrogen atoms in solution.</h2>

Explanation:

A swedist scientist Savante Arhenius give the theory of behaviour of Acid-bases. According to Arhenius ,Arhenius Acid compound produce hydrogen ion or proton upon adding in aqueous solution . Acid are molecular compound that have higly polar covalently bonded ionizable hydrogen atom. HCL is a polar covalently bonded and gas at room temperature and noormal pressure . Upon addition of HCL in water cause ionization ,water breaks into chloride ion and hydrogen ion , in this reaction chlorine gain bond pair electron , while hydrogen ion or proton attached with water . chlorine gain bond pair electron due higher electronegativity than hydrogen and hydrogen loose their electron due to less electronegativity and become hydrogen ion ,these hydrogen ion attached with water to form hydronium ion $H_{3}O^{+}(aq)$ . Hydronium ion is polyatomic ion .

Ionization of HCL in water

$HCL(gas)\rightarrow H^{+}(aq) + CL^{-}(aq)$

formation of polyatomic hydronium ion after HCL ionization in water ,where hydrogen ion attached to water and form polyatomic ion.

$HCL(gas) + H_{2}O(liq)\rightarrow H_{3}O^{+}(aq) + CL^{-}(aq)$ .

7 0

3 years ago

Match the separation techniques with the correct descriptions.

nordsb [41]

Answer:

Explanation:

1 = A

Sublimation is the process where by a sample is heated to pass through solid phase to gaseous phase without the intermittent liquid phase. Example of substance that sublime is camphor.

2 = D

Decantantion

5 = F

Filtration is the process a liquid from solid using a porous material. This technique requires a set up and a good porous material eg filter paper.

6 = B

This technique is to separate a mixture of solids by converting them from solid phase to gaseous phase since they sublime.

3 = deposition.

The answer isn't in the option but deposition is the process of substance in gaseous phase to change into solid state without passing through liquid phase. Deposition is the opposite of sublimation.

4 = E

4 0

3 years ago