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3 years ago

Why was plastic first invented? How is plastic bad for the environment?

2 answers:

8 0

Answer: The first plastic based on a synthetic polymer was invented in 1907. Plastic sticks around in the environment for ages, threatening wildlife and spreading toxins.

andriy [413]3 years ago

6 0

Not sure how it was invented but it had for the environment cause it causes plastic particles killing anything or endangering those that consume it.

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What units are used to measure energy? A) volts B) angstroms C) centimeters D) joules

Usimov [2.4K]

Answer:

joules

Explanation:

it is the measurement of energy

7 0

3 years ago

One of the basic building blocks of matter, which cannot be broken down by chemical means is a(n)______ , of which there are 92

Nadusha1986 [10]

One of the basic building blocks of matter, which cannot be broken down by chemical means is an element.

The first chemical element is hydrogen (atomic number is 1) and the last is oganesson (atomic number is 118).

Elements are scheduled in Periodic table, ordered by their atomic number.

Other example, krypton is a chemical element with symbol Kr and atomic number 36.

Krypton has 36 electron and 36. It is noble gas (group 18).

Noble gases are in group 18: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). They have very low chemical reactivity.

More about chemical element: brainly.com/question/28376204

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6 0

2 years ago

Which element has atoms with only one completely filled principal energy level

liubo4ka [24]

I think it’s hydrogen

3 0

4 years ago

(2pts) During the Purification of Lactate Dehydrogenase (LDH) experiment, you will need 50ml of buffer A150. Buffer A150 is 30mM

torisob [31]

Answer:

The answer is " $20 \ mL$ "

Explanation:

Given:

Molarity= number of moles

because it is 1 Liter

$\to \frac{0.03\ moles}{1.5 moles}=0.02\ L= 20 \ mL \ of\ Tris\\\\$

therefore,

it takes 20 mL of Tris.

$\to \frac{0.150 \ moles}{5\ moles} =0.03\ L\\\\$

$= 30 \ mL \ of\ Nacl$

So, take $20 \ mL\ of\ NaCl.$

6 0

3 years ago

Question 4 of 15

Anna [14]

Answer:

Explanation:

5 0

3 years ago

Read 2 more answers

Why was plastic first invented? How is plastic bad for the environment?​

Why was plastic first invented? How is plastic bad for the environment?