1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vika [28.1K]
3 years ago
15

Help thank you so so much!

Chemistry
1 answer:
Otrada [13]3 years ago
8 0

Answer:

D is the answer to this problem

You might be interested in
If 8.500 g CH is burned and the heat produced from the burning is added to 5691 g of water at 21 °C, what is the final
mojhsa [17]

The final temperature = 36 °C

<h3>Further explanation</h3>

The balanced combustion reaction for C₆H₆

2C₆H₆(l)+15O₂(g)⇒ 12CO₂(g)+6H₂O(l)  +6542 kJ

MW C₆H₆ : 78.11 g/mol

mol C₆H₆ :

\tt \dfrac{8.5}{78.11}=0.109

Heat released for 2 mol C₆H₆ =6542 kJ, so for 1 mol

\tt \dfrac{0.109}{2}\times 6542=356.539~kJ/mol

Heat transferred to water :

Q=m.c.ΔT

\tt 356.539=5.691~kg\times 4.18~kj/kg^oC\times (t_2-21)\\\\t_2-21=15\rightarrow t_2=36^oC

3 0
3 years ago
How are the properties of organic compounds determined?
Harman [31]

Explanation:

The physical properties of organic compounds typically of interest include both quantitative and qualitative features. Quantitative information includes a melting point, boiling point, and index of refraction. Qualitative properties include odor, consistency, solubility, and color.

4 0
3 years ago
Write the correct ionic formula when given two elements that bond ionically.
Tanzania [10]
Answer:
            Ionic bond is formed by the opposite ions attraction between the 2 atoms in an ionically bonded compound. The two ions i.e. Cation and Anions are formed by oxidation and reduction reactions respectively. General Ionic formula is as follow,

                                             Mⁿ⁺ + Nⁿ⁻   →  MN
where;
           Mⁿ⁺   =  Cation

           Nⁿ⁻   =  Anion

           MN  =  Salt

Explanation:
                   Ionic bond is the electrostatic forces of attraction between positively charged cations and negatively charged Anions. These forces are very stronger resulting in increasing several physical properties of Ionic compounds like melting point and boiling point e.t.c.

Example:

Sodium Chloride:
                           NaCl is formed by Na⁺ cation and Cl⁻ anion as follow,

Oxidation of Na;

                                      2 Na  →  2 Na⁺  +  2 e⁻
Reduction of Cl₂;

                                    Cl₂  +  2 e⁻  →  2 Cl⁻

Crystal Lattice formation is as follow,

                                  Na⁺  +  Cl⁻   →  NaCl
4 0
3 years ago
Draw a picture of the moon and sun illustrating the full moon phrase
jek_recluse [69]

Hi Sydney!

I can't draw in this question, but there is a picture showing this phase for you to follow when you draw it.

Hope This Helps :)

6 0
3 years ago
Read 2 more answers
That my last Q8 A , can someone help me with
DENIUS [597]
The first whistle is louder while the second whistle has a higher pitch
Loud vs high
3 0
2 years ago
Read 2 more answers
Other questions:
  • Be sure to answer all parts. the average atomic mass of nitrogen is 14.0067. the atomic masses of the two stable isotopes of nit
    12·1 answer
  • Consider the following general voltaic cell and a cell notation, and answer all three parts of this question.
    9·1 answer
  • In creating a covalent bond, it would be best to bind sulfur to:
    12·2 answers
  • Q #4 please help if you are sure
    5·1 answer
  • Why is pure silicon a poor conductor at room temperature?
    7·1 answer
  • Please help question in the picture
    12·2 answers
  • What is the difference between solution and solute​
    12·1 answer
  • HELP ME! If I get an F on my test I’m getting kicked out:(
    12·1 answer
  • While watching tv in your room one nigh, you decide to have some Oreos and a glass of milk. there were only 3 Oreos and science
    8·1 answer
  • What is the total number of electrons in As-3?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!