3 months ago

summarize what you read on the two articles by identifying the advantages and disadvantages of using plastics

2 answers:

8 1

Answer:s: The material is robust, inexpensive, resistant to water, requires less energy and harsh chemicals for production, and is lightweight.

Explanation:

KiRa [2.9K]3 months ago

4 0

Sample Response:

The characteristics of plastics are valuable for creating products that aid society. However, the production and use of plastics also come with significant environmental hazards, negative impacts on human health, and risks to other living beings.

Explanation:

After composing my response, I found this sample response, which I thought would be useful.

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Which best describes the relationships between subatomic particles in any neutral atom? * 1 point the number of electrons equals

Tems11 [2777]

The atomic number corresponds to the number of protons

Protons are denoted as P and Electrons as E P = E

The atomic mass equals the sum of Neutrons and Protons

Atomic number = atomic mass = neutrons

P = E

Atomic mass - atomic number = Neutrons

Example:

Calcium consists of 20 Protons 20P = 20E

Atomic mass - atomic number = neutron count:)

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2 months ago

What is the symbol for the isotope of 58 co that possesses 33 neutrons?

KiRa [2933]

The element with atomic number 58 is Cerium, meaning its symbol should be Ce rather than Co, which belongs to Cobalt with atomic number 27. Therefore, the notation for isotopes consists of the element's symbol accompanied by a superscript and a subscript, properly aligned. The superscript indicates the mass number.

Mass number = protons + neutrons = 58 + 33 = 91

The subscript denotes the atomic number, which is 58. This notation is illustrated in the attached image.

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4 months ago

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