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Grace [21]
2 years ago
15

Write a balanced molecular equation and a net ionic equation for the reaction that occurs when magnesium hydroxide reacts with a

hydrochloric acid solution. Express your answers as chemical equations separated by a comma. Identify all of the phases in your answer.
Chemistry
1 answer:
Elina [12.6K]2 years ago
5 0

Answer:

Balanced molecular equation and net ionic equation have been shown below.

Explanation:

Mg(OH)_{2} is a weak base as it does not dissociate completely in water. HCl is a strong acid as it dissociates completely in water.

Reaction between Mg(OH)_{2} and HCl is an example of acid-base reaction. Here a salt MgCl_{2} is formed along with H_{2}O.

Balanced molecular equation:

Mg(OH)_{2}(aq.)+2HCl(aq.)\rightarrow MgCl_{2}(aq.)+2H_{2}O(l)

To write net ionic equation, spectator ions are to be removed from both side of total ionic equation. Here Cl^{-} is the spectator ion.

Total ionic equation:

Mg(OH)_{2}(aq.)+2H^{+}(aq.)+2Cl^{-}(aq.)\rightarrow Mg^{2+}(aq.)+2Cl^{-}(aq.)+2H_{2}O(l)

Net ionic equation:

Mg(OH)_{2}(aq.)+2H^{+}(aq.)\rightarrow Mg^{2+}(aq.)+2H_{2}O(l)

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100.0 g of 4.0°C water is heated until its temperature is 37.0°C. If the specific heat of water is 4.184 J/g°C, calculate the am
Lady bird [3.3K]

Answer:

13.8072 kj

Explanation:

Given data:

Mass of water = 100.0 g

Initial temperature = 4.0 °C

Final temperature = 37.0°C

Specific heat capacity = 4.184 j/g.°C

Heat absorbed = ?

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 37.0°C -  4.0 °C

ΔT = 33.0°C

Q = 100.0 g ×4.184 j/g.°C × 33.0°C

Q = 13807.2 j

Joule to KJ:

13807.2 j  × 1kj  /1000 j

13.8072 kj

5 0
3 years ago
What most accurately explains whether liquid water or ice has a higher density, and why?
nata0808 [166]

Answer:

I think your answer is either b or c but I think b is more likely to be your answer

7 0
2 years ago
I kinda need help pla
muminat
It is B that one has the most mass
6 0
2 years ago
a person measures the mass of an 8 cm3 block of brown sugar to be 12.9 g. What is the density of the brown sugar.
Maksim231197 [3]


From the information we have, this block of brown sugar  has a volume of 8cm3

The mass of the block is 12. 9 grams.

We need to find out the density of the sugar.

For a solid material the formula for calculating density is given as:

Density = mass / volume

Therefore we simply fit in the above given values into this formula, so:

Density = 12.9 / 8

Density = 1.61

Therefore the density of the block of sugar is 1.61g/ml


8 0
3 years ago
How does the behavior of the water molecules change as the pan of water is heated?
VladimirAG [237]
The behavior of the water molecules change as the pan of water is heated, As the water is heated, the water molecules move faster and farther apart. The molecules change as the water is heated and the water molecules move faster and farther.<span>
</span>
5 0
3 years ago
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