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saw5 [17]
3 years ago
13

Based on reference table L, H2O is a stronger acid than

Chemistry
1 answer:
Shalnov [3]3 years ago
7 0

Answer:

HS-

Explanation:

C and D are stronger acids and B is a base.

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Which of the following is NOT a strong acid or strong base?
Phoenix [80]

Magnesium hydroxide Mg(OH)₂ is a weak base.

Explanation:

Sulfuric acid H₂SO₄ and hydrochloric acid HCl are, both of them, very strong acids.

Sodium hydroxide NaOH and potassium hydroxide KOH are hydroxides of metals from the first group in the periodic table so thy are strong bases.

As you go to the second group in the periodic table, the hydroxides will not dissociate as much as the hydroxides from the first group in the periodic table , so they will be weak bases. This is the case of magnesium hydroxide Mg(OH)₂.

Learn more about:

acid and bases

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4 0
3 years ago
Balance the equation Mg+Fe2O3->MgO+Fr
Readme [11.4K]

Answer:

3Mg +Fe2O3 ---> 3 MgO + 2Fe

Explanation:

3Mg +Fe2O3 ---> 3 MgO + 2Fe

Mg  3                     Mg    3

Fe    2                    Fe     2

O     3                       O     3

before                     after

8 0
3 years ago
Read 2 more answers
If 52.5 mL of lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.248 g of precipitate, wh
user100 [1]

Explanation:

The volume of given lead nitrate solution is:

52.5 mL.

The amount of lead iodide formed is ---0.248 g.

To get the molarity of lead (II) ion follow the below-shown procedure:

The number of moles of lead iodide formed is:

number of moles of lead iodide(n)=mass of lead iodide/its molecular mass\\n=0.248 g/461.01g/mol\\n=0.000537mol

0.000537 mole of lead iodide contains --- 0.000537 moles of lead (II) ion.

Thus, the number of moles are there, volume is there, and to get the molarity of lead (II) ion use the formula:

Molarity=\frac{number of moles}{volume in L.} \\M=0.000537 mol / 0.0525 L.\\M=0.0102mol/L

Molarity of lead iodide is --- 0.0102 M.

7 0
3 years ago
Natalie observes these characteristics in the model of an atom.
PilotLPTM [1.2K]
An atoms consists of protons, electrons and neutrons. Protons are positively charged while electrons are negatively charged. Both are electrically attracted to each other. Meanwhile, the neutrons are electrically neutral which do not  have a charge. This means that neutrons are neither  electrically attracted to the protons nor electrons,
4 0
3 years ago
2. Work is done only when an object.<br> in the<br> of the force<br> that is being applied.
sp2606 [1]

Answer:

Whenever a force is applied to an object, causing the object to move, work is done by the force. ... Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work

3 0
3 years ago
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