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AlekseyPX
3 years ago
5

In a chemcial reaction, substances

Chemistry
1 answer:
Fofino [41]3 years ago
5 0

Answer:

My guess is c

Explanation:

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200 grams of an organic sample which contains only carbon, hydrogen and oxygen is analyzed and found to contain 97.30grams of ca
Klio2033 [76]
The empirical formula is C2H4O
7 0
3 years ago
What are the symbols, atomic mass and abundance in nature of the isotope boron-11
Aneli [31]
  1. The chemical symbol of the isotope boron-11 is ¹¹B.
  2. The atomic mass of the isotope boron-11 is equal to 11.009306.
  3. The abundance in nature of the isotope boron-11 is equal to 80.1%.

<h3>What is an isotope?</h3>

An isotope can be defined as the atom of a chemical element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of neutrons).

In Chemistry, there are two main isotopes of boron and these include the following:

  • Boron-10
  • Boron-11

Boron-11 is the most stable isotope of boron and it is characterized by the following:

  1. The chemical symbol of the isotope boron-11 is ¹¹B.
  2. The atomic mass of the isotope boron-11 is equal to 11.009306.
  3. The abundance in nature of the isotope boron-11 is equal to 80.1%.

Read more on Boron-11 here: brainly.com/question/6283234

#SPJ1

8 0
2 years ago
What can I do to improve my basic chemistry?​
LUCKY_DIMON [66]

Answer:

read a lot and understand what you read

do practicals

4 0
3 years ago
Read 2 more answers
The R-COOH compound behaves as an _____. acid base alcohol ester
nadezda [96]
The correct answer is base 

8 0
3 years ago
Read 2 more answers
(a) if a sample containing 2.00 ml of nitroglycerin is detonated, how many total moles of gas are produced? (b) if each mole of
gregori [183]
Detonation of nitroglycerin: 

4C_3H_5N_3O_9  ------\ \textgreater \  12CO_2+6N_2+O_2+H_2O

<span>Mass nitroglycerin = 2.00 mL x 1.592 g/mL = 3.184 g 
</span>
Moles = mass / molar mass = 3.184<span> g/ 227.0872 g/mol = 0.01402
</span>
the ratio between nitroglycerin and Carbon dioxide is 4 : 12 
So, moles CO2 = 0.01402 x 12 / 4 =0.0420

the ratio between nitroglycerin and N2 is 4 : 6 
moles N2 = 0.01402 x 6 / 4 =0.0841

<span>the ratio between nitroglycerin and O2 is 4 : 1 </span>
moles O2 = 0.01402 x 1 / 4 = 0.0035

<span>the ratio between nitroglycerin and water is 4 : 1 </span>
<span>in the same way moles water = 0.005258 </span>

total moles = 0.0420 + 0.0841 + 0.0035 + 0.005258 = 0.130758

0.130758<span> x 55 = 5.78 L </span>

Mass N2 = 0.0841 mol x 28.0134 g/mol = 2.3548 g


6 0
3 years ago
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