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
horsena [70]
3 years ago
12

Help me please I need help

Chemistry
1 answer:
yanalaym [24]3 years ago
4 0
37. Is D
38. Is C
39. Is A
40. Is A
41. Is D I think!
I'm 100% positive about 37-40 but I'm 50% sure on question number 41.
I hope this helped!
You might be interested in
If I titrate an acid with 255mL of 3.4 M NaOH (base) and reach the equivalence point, how many moles of H+ ions were in the acid
FromTheMoon [43]

Answer:

Molar Concentration = \frac{Moles of Solute}{Litres of Solution}

                                     = \frac{3.4}{0.255}

                                    =  13.33

No. of H+ ions present = 13.33

pH value = - log[13.33]

               =  -1.12

Explanation:

The equivalence point, or stoichiometric point, of a substance response is the point at which synthetically identical amounts of reactants have been blended. As such, the moles of corrosive are equal to the moles of base, as per the condition (this doesn't really infer a 1:1 molar proportion of acid:base, simply that the proportion is equivalent to in the condition). It tends to be found by methods for a marker, for instance phenolphthalein or methyl orange. The endpoint (identified with, however not equivalent to the equivalence point) alludes to the point at which the marker changes shading in a colorimetric titration.

7 0
3 years ago
Find the effective resistance of the circuit
frozen [14]
300 ohms as you can add the individual resistances together
3 0
3 years ago
g 8. A hydrogen atom is initially a rest and in the ground state. A proton with kinetic energy 1000 eV scatters off the atom. In
aleksley [76]

Answer:

Explanation:

Ionization energy of hydrogen atom is 13.6 eV . This energy will be provided by energetic proton , the kinetic energy of which is 1000 eV.  The kinetic energy of ionized electron is 15.2 eV . Kinetic energy of proton produced from from the ionization of hydrogen or the nucleus of the hydrogen atom is 4.3 eV . All these energy must have come from kinetic energy of initial proton.

So kinetic energy of projectile proton after collision

= 1000 - ( 13.6 + 15.2 + 4.3 ) eV.

= 966.9 eV .

8 0
3 years ago
How many gallons are equivalent to 4000.0 ml (3.78L=1gal) show work
Vinvika [58]
1.0566 gal. 


H  O  W  E  V  E  R

the constant formula you can use for solving and simplifying equations such as these, you can simply look up the metric system online and figure one out. hoped this helped!
6 0
3 years ago
describe the" fear appeal" and how it's used in public messaging. Give an example or create your own public health message using
Vsevolod [243]
A good example is cigarretes they try to scare you into not smoking by telling you all of the downsides of smoking like lung cancer and i guess that would be fear appeal 
7 0
3 years ago
Other questions:
  • Can you answer the following questions with work, please?A) The conversion of glucose-6-phosphate to fructose-6-phosphate is cat
    12·1 answer
  • An ionic precipitation reaction takes place when aqueous solutions of potassium phosphate and aluminum nitrate are combined in a
    9·1 answer
  • Atoms of the most reactive elements tend to have
    12·2 answers
  • Easy Mole Conversion: <br><br> How many grams are in 2.00 moles of cobalt (I) hydroxide?
    14·1 answer
  • Explain how the law conservation of mass is related to balancing equations
    5·1 answer
  • 6CO2 + 6H20 → C,H120, + 602
    12·1 answer
  • At which location would an object’s weight be the greatest?
    12·2 answers
  • The scientific method is the way scientists solve problems. Scientists begin to solve a problem by making _____.
    9·1 answer
  • Is copper and silver nitrate a physical change or Chemical change
    9·1 answer
  • How is mass calculated given density and volume?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!