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IgorLugansk [536]
4 years ago
12

What is the definition of science

Chemistry
1 answer:
Bogdan [553]4 years ago
4 0

Answer:

The observation, identification, description, experimental investigation, and theoretical explanation of natural phenomena

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Answer:

<h2>total no. of electron present in Valency shell is called valency electron </h2><h2>___________________</h2>

<h2>valency shell is that in which last electron is present</h2>

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A farmer had an accident and spilled a chemical into his pond. Several days later, he notices many dead frogs around the pond. T
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4 years ago
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Given that the nucleophilic substitution reaction used 5.0 mL of t-pentyl alcohol and 12.0 mL of conc. hydrochloric acid to prod
Vladimir [108]

Answer:

4.90 g

Explanation:

Given that:

volume of t-pentyl alcohol = 5 mL

the standard density of t-pentyl alcohol = 0.805 g/mL

Recall that:

density = mass(in wt) /volume

mass = density × volume

mass = 0.805 g/mL × 5 mL

mass = 4.03 g

Volume of HCl used = 12 mL

The reaction for this equation is shown in the image attached below.

From the reaction,

88.15 g of t-pentyl alcohol reacts with concentrated HCl to yield 106.59 g pf t-pentyl chloride.

4.03 g of t-pentyl alcohol forms,

= \dfrac{106.59 \ g \times 4.03 \ g}{88.15 \ g} of t-pentyl chloride.

Therefore,

Theoretical yield of t-pentyl chloride = 4.90 g

8 0
3 years ago
Riley is scootering down the street before they come to a stop at a stop
11111nata11111 [884]

Answer:

just subrracted them and find out whats m

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Chemistry balance equations C2H +O2=CO2+H2O​
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Invalid equation.

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