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Lunna [17]
3 years ago
8

Main ingredients of plastic bags and natural resources used please

Chemistry
1 answer:
DanielleElmas [232]3 years ago
4 0
<span>polyethylene or polythene are the main ingredients </span>
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How does recycling wood products help maintain the supply of forestland for a longer period of time?
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Recycling reduces the demand for new wood is correct

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3 years ago
Which element above has 8 protons in its nucleus?
Nataliya [291]
A. Oxygen. Oxygen has an atomic mass of 16. The atomic mass of an atom is the combined weight o the protons and neutrons. Since Oxygen's atomic mass is 16, it has 8 protons and 8 neutrons.
6 0
3 years ago
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What is the molar concentration of hydronium ions in a sample of a soft drink that has a ph of 4?
hammer [34]

[H^{+}] value of soft drink is 0.0001mol/l when given pH is 4.

Given:

pH = 4

Needs to find: [H^{+}]

Formula to find: pH=−log_{10} [H^{+}]

We can put the values of pH in above formula as,

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4 =−log_{10} [H^{+}]

To calculate hydonium ion concentration, formula is as follows;

[H^{+}] = 10^{-pH}

[H^{+}] = 10^{-4} = 0.0001mol/l

[H^{+}] value of soft drink is 0.0001mol/l

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brainly.com/question/2288405

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6 0
2 years ago
When heating a flammable or volatile solvent for a recrystallization, which of these statements are correct? More than one answe
Citrus2011 [14]

Answer:

You should not use an open flame to heat the solvent and the solvent should be heat in a stoppered flask to vapour away from the open flame

Explanation:

6 0
3 years ago
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Sergio039 [100]

Answer:

7

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better check book pages for this kinda answer.

8 0
3 years ago
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