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3 years ago

7

When an acid and an alkali react, a salt and water are formed. Pick the correct salt produced when ammonium hydroxide reacts wit

h nitric acid.

1 answer:

hjlf3 years ago

8 0

ammonium nitrate is produced

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What are groups on the periodic table? How many are there?

Amiraneli [1.4K]

Explanation:

Groups are numbered 1–18 from left to right. The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.

6 0

3 years ago

Read 2 more answers

The pKa of formic acid is 3.75. At pH of 5.00, _______ .

AlladinOne [14]

The pKa of formic acid is 3.75. At pH of 5.00, b) [formate] > [formic acid].

Formic acid is a weak acid. Thus, together with its conjugate base (formate) they form a buffer system. We can calculate the pH of a buffer system using Henderson-Hasselbach's equation.

$pH = pKa + log \frac{[formate]}{[formic\ acid]} \\\\5.00 = 3.75 + log \frac{[formate]}{[formic\ acid]}\\\\\frac{[formate]}{[formic\ acid]} = 17.8$

As expected, at a pH above the pKa, the concentration of formate is higher than that of the formic acid.

The pKa of formic acid is 3.75. At pH of 5.00, b) [formate] > [formic acid].

Learn more: brainly.com/question/22821585

5 0

3 years ago

What describes the current model of the atom? Select one: A. That electrons and protons move randomly around a nucleus. B. Elect

Vlad [161]

The answer to this is C

7 0

3 years ago

Question 6 of 10

Ratling [72]

B reactant +product+reactant+Product

3 0

2 years ago

Calculate the moles of SO2 that contains 3.8 moles of O atoms

Olegator [25]

Answer: 1.9 moles SO₂

Explanation:

1) The chemical formula SO₂ shows that for every mol of SO₂ there are 1 mol of S and two moles of O.

2) Then you can state the proportion between the number of moles of SO₂ and O to find how many moles of SO₂:contains 3.8 moles of O.

   1 mol SO₂                         x

-------------------- =   --------------------------

    2 moles O              3.8 moles O

3) Now, you can clear x:

x = 3.8 moles O × 1 mol SO₂ / 2 moles O.

x = 1.9 moles SO₂.

5 0

3 years ago