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soldier1979 [14.2K]
3 years ago
15

how much hydrogen will be released during the interaction of potassium weighing 8 grams with hydrochloric acid

Chemistry
1 answer:
krek1111 [17]3 years ago
4 0

Answer:

With an understanding of the ideal gas laws, it is now possible to apply these principles to chemical stoichiometry problems. For example, zinc metal and hydrochloric acid (hydrogen chloride dissolved in water) react to form zinc (II) chloride and hydrogen gas according to the equation shown below:

2 HCl (aq) + Zn (s) → ZnCl2 (aq) + H2 (g)

Explanation:

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\large\colorbox{lightblue}{Xxᴊᴀsʜ13xX}

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Which of these statements is/are true? Rewrite each false statement to make it true.
Lelechka [254]
<h3>Answer:</h3>

TRUE- The surface tension of CH3Br is greater than the surface tension of CH3Cl.

FALSE-Water forms spherical drops on wax because the surface tension of water is greater than the adhesive forces between wax and water.

<h3>Explanation:</h3>
  • The statement that, the surface tension of CH3Br is greater than the surface tension of CH3Cl is true.
  • This is because of the fact that CH₃Br has more molar mass compared to CH₃Cl. Additionally, CH₃Br has greater dispersion forces and is more polarizable thus having greater surface tension compared to CH₃Cl.
  • The statement that "Water forms spherical drops on wax because the surface tension of water is greater than the adhesive forces between wax and water" is FALSE.
  • We would correct it by saying, Water forms spherical drops on wax because the cohesive force of water is greater than the adhesive forces between wax and water.
  • Cohesive forces are forces of attraction between molecules or particles of the same type while adhesive forces is a force of attraction between molecules of different type.
4 0
3 years ago
Read 2 more answers
2 Which two substances cause iron to rust?
guapka [62]

Answer:

water and oxygen

Explanation:

this is because

iron + water + oxygen ----> hydrated iron (III) oxide (which is rust in lame terms )

hope this helps

please mark it brainliest

8 0
3 years ago
Keeping water clean. Keeping water supplies clean requires regular measurement of levels of pollutants. The measurements are ind
amm1812

Answer:

n g ng

Explanation:

chn gcfn h

8 0
3 years ago
Iron is an essential mineral needed for your body. Which green vegetables are high in iron? What body system is dependent on a c
GaryK [48]
Spinach and broccoli are high in Iron. The respiratory system needs constant supplies of iron to maintain healthy blood cells. Not having enough Iron can lead to low numbers of red blood cells, without red blood cells not enough blood will flow to organs, causing iron deficient anemia.


Hope this helps!
5 0
4 years ago
A certain weak acid, HA, has a Ka value of 2.6×10−7. Calculate the percent ionization of HA in a 0.10 M solution.
Andrej [43]

Answer:

The percent ionization is 0,16%

Explanation:

The percent ionization is defined as the number of ions that exist in a substance.

PI=\frac{[A-]}{[HA]} x100

First, we find the [A-] using the ka equation

HA ⇄ H^{+} + A^{-}

[H+] = [A-]

Ka=\frac{[H+][A-]}{[HA]}\\ \\

since the ionization constant is very small we can assume that the final concentration of [HA] is the same

Ka=\frac{[H+]^{2} }{[HA]} \\\\

[H+]=\sqrt[2]{Ka.[HA]} \\\\

[H+] =\sqrt{(2,610^{-7} )(0,1)}  = 1,61210^{-4}

Now we calculate the percent ionization using these values

PI=\frac{1,61210^{-4} }{0,1} X100

PI=0,16%

4 0
4 years ago
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