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Alja [10]
3 years ago
13

What is produced when a base reacts with water?

Chemistry
1 answer:
lubasha [3.4K]3 years ago
5 0
<h2>Answer:</h2>

Hydroxide ions.

<h2>Explanation:</h2>
  • When base reacts with water they form hydroxide ion.
  • For example, NH₃      +    H₂O   ---------->      NH₄⁺       +        OH⁻

                        (Ammonia)     (Water)           (Ammonium)    (Hydroxide ion).

  • In case of strong and week base, generally weak bases partially reacts with water to produce hydroxide ions. Whereas strong base completely reacts with water to produce hydroxide ions  And the reaction between a strong acid and a strong base produces salt and water and reaction is called neutralization reaction as both acid and base get neutralized.

Result: On reaction of base with water gives hydroxide ion.

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A chermist weighs out 400.0 g of Ca How many moles of Ca is this?
ra1l [238]

Answer:

<h3>The answer is 0.1 mol</h3>

Explanation:

To find out the number of moles we use the formula

n =  \frac{m}{M}  \\

where

n is the number of moles

M is the molar mass

m is the mass of the substance

From the question

m = 400 g

M of Ca = 40 g/mol

We have

n =  \frac{40}{400}  =  \frac{1}{10}  \\

We have the final answer as

<h3>0.1 mol</h3>

Hope this helps you

4 0
4 years ago
An irregularly shaped piece of magnesium with a mass of 11.81 g was dropped into a graduated cylinder partially filled with wate
dlinn [17]

Answer:

The answer is

<h2>1.74 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of magnesium = 11.81 g

volume = 6.80 mL

The density of the metal is

density =  \frac{11.81}{6.80}  \\  = 1.73676470...

We have the final answer as

<h3>1.74 g/mL</h3>

Hope this helps you

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