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a_sh-v [17]
3 years ago
6

What is the bronsred base of NO2- +H2O HNO2 +OH-

Chemistry
1 answer:
kramer3 years ago
4 0
Bronsted lowry bases

NO2- amd OH-
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Explain why every cell in the human body requires support by the circulatory system regardless of its function. Use scientific e
noname [10]
Okay , i’m kinda confused about this
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What is the mass of a 4.259 g/cm3 substance which takes up 250.00 cm3 of space? answer in significan figures
marysya [2.9K]

Answer: that is wrong

Explanation:

4 0
3 years ago
Question 10
bixtya [17]
The reaction that should be followed is
Na2SO4 + C<span>a(NO3)2 --> CaSO4 + 2NaNO3</span>
first calculate the limiting reactant
mol Na2SO4 = 0.075 L (<span>1.54×10−2 mol / L) = 1.155x10-3 mol


mol Ca(NO3)2 = 0.075 L (</span><span>1.22×10−2 mol / L) = 9.15x10-4 mol
so the limiting reactant is the Ca(NO3)2

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5 0
3 years ago
Which of the following environments are low-level areas that can be temporarily or seasonally filled with water?
Oliga [24]

Answer:

Rainforest

Explanation:

Swamps are permanently filled with water

and Tundras are dry and cold so the answer should be Rainforest

4 0
3 years ago
Which compound in each pair is more soluble in water?(a) Magnesium hydroxide or nickel(II) hydroxide
Alexxandr [17]

What is called compound?

  • In chemistry, a compound is a substance made up of two or more different chemical elements combined in a fixed ratio.
  • When the elements come together, they react with each other and form chemical bonds that are difficult to break.
  • These bonds form as a result of sharing or exchanging electrons between atoms.

a) Mg(OH)2 or Ni(OH)2.

Mg(OH)2 1.8×10–11

Ni(OH)2 2.0×10–15

Clearly, Ksp value for Mg(OH)2 is higher , meaning it is MUCH MORE SOLBULE than Nickel

therefore, choose Mg(OH)2.

b)

PbS 3×10–28

CuS 6×10–37

Clearly, PbS is much more soluble than CuS

since Ksp is higher .

c)

Ag2SO4 1.4×10–5

MgF2 3.7×10–8

Clearly, Ag2SO4 has higher Ksp, so it is much more soluble.

Learn more about compound

brainly.com/question/13516179

#SPJ4

6 0
2 years ago
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