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
-BARSIC- [3]
2 years ago
8

(pls help)

Chemistry
2 answers:
lara [203]2 years ago
7 0

Answer:

1

Explanation:

you needa do the last question cause i am not learning this but 1 is right

JulsSmile [24]2 years ago
3 0
Claim 2


it gets to the point and i would be convinced
You might be interested in
What it is the total length of two pieces of rubber tubing which are 7.69 cm and 4.028 cm in length? Express this answer to the
Brilliant_brown [7]
The corrects answer it 9. 45
6 0
3 years ago
Part A
algol13
The correct answer for the question that is being presented above is this one: "C) The reaction is spontaneous at high temperatures." 
Since dH is positive and dS ~ 0 then -TdS ~ 0, meaning dG will always be greater than 0 so t<span>he reaction is spontaneous at high temperatures.</span>
3 0
3 years ago
What is the pH of a 2.0 x 10^-4 M solution of nitric acid (HNO3)
Semmy [17]

Hello!

datos:

Molarity = 2.0*10^{-4}\:M\:(mol/L)


ps: The ionization constant of the nitric acid is strong (100% ionized in water) or completely dissociates in water, so the pH will be:

pH = - log\:[H_3O^+]

pH = - log\:[2*10^{-4}]

pH = 4 - log\:2

pH = 4 - 0.30

\boxed{\boxed{pH = 3.70}}\end{array}}\qquad\checkmark

Note:. The pH <7, then we have an acidic solution.

I Hope this helps, greetings ... DexteR!

3 0
3 years ago
Read 2 more answers
What is the correct sequence of events in the food chain?
Veseljchak [2.6K]
I believe it is the fourth choice because the producer would use sunlight to make food, then the next choice fhat has anything to do with the producer is [D]. if i’m wrong i’m sorry but I believe that would be the write anwser.
7 0
2 years ago
As the number of carbons increases in an homologous series the melting and boiling point generally_________ *
Oliga [24]
ANSWER: Increase


why? Because the number of C atoms in homologous series increases gradually.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which chemical do you think would best maintain the pH of the pool water?
    12·2 answers
  • How many moles of Ca atoms are in 1 mol of CaSO4?
    5·1 answer
  • 3CI02+NO_3-+H_2O--&gt; NO +3CIO3-+2H+In the above redox reaction, use oxidation numbers to identify the element oxidized, the el
    15·1 answer
  • In general, an atom with _________________ electrons in its valence shell tends to lose electrons and form a ___________________
    15·1 answer
  • Dissolving 4.02 g of CaCl2 in enough water to make 349 mL of solution causes the temperature of the solution to increase by 3.91
    8·1 answer
  • A standard room temperature and pressure, most of the elements on the periodic table are
    14·1 answer
  • SOMEONE PLS HELP ME WITH THE FIRST QUESTION IN THE BOTTOM.
    10·2 answers
  • Which is more likely HON or HNO
    10·1 answer
  • Chemical composition and function of iodized salt
    13·1 answer
  • Science edpuzzle <br> All of the following describe a chemical change, EXCEPT…
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!