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2 years ago

Write the chemical equation that describes how calcium carbonate neutralizes acid

Chemistry

2 answers:

olchik [2.2K]2 years ago

8 0

Answer:

$CaCO_3+2HCl-->CaCl_2+CO_2+H_2O$

Explanation:

Hello,

Typically, calcium carbonate is suitable to neutralize specifically hydrochloric acid via the required chemical reaction which is shown below:

$CaCO_3+2HCl-->CaCl_2+CO_2+H_2O$

Carbon dioxide and water are yielded as carbonic acid is firstly yielded but it is unstable enough to be segregated into carbon dioxide and water. In addition, calcium chloride is yielded as an evidence of the acid's neutralization.

Best regards.

enyata [817]2 years ago

6 0

<h3><u>Answer;</u></h3>

CaCO3(s)+ 2 H+(aq) → Ca+2 + CO2(g) + H2O(l)

<h3><u>Explanation</u>;</h3>

The reaction of an acid with calcium carbonate is an example of an acid-base reaction.
In these reactions, an acid will react with a base to form a salt and water. The acid was neutralized by the base.

For example, CaCo3 will neutralize HCl by the following equation:

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Using standard heats of formation, calculate the standard enthalpy change for the following reaction. 2H2S(g) 3O2(g)2H2O(l) 2SO2

Marizza181 [45]

Answer:

$\Delta _rH=-1124.14kJ/mol$

Explanation:

Hello!

In this case, since the standard enthalpy change for a chemical reaction is stood for the enthalpy of reaction, for the given reaction:

$2H_2S(g) +3O_2(g)\rightarrow 2H_2O(l) +2SO_2(g)$

We set up the enthalpy of reaction considering the enthalpy of formation of each species in the reaction at the specified phase and the stoichiometric coefficient:

$\Delta _rH=2\Delta _fH_{H_2O,liq}+2\Delta _fH_{SO_2,gas}-2\Delta _fH_{H_2S,gas}-3\Delta _fH_{O_2,gas}$

In such a way, by using the NIST database, we find that:

$\Delta _fH_{H_2O, liq}=-285.83kJ/mol\\\\\Delta _fH_{SO_2, gas}=-296.84kJ/mol\\\\\Delta _fH_{O_2,gas}=0kJ/mol\\\\\Delta _fH_{H_2S,gas}=-20.50kJ/mol$

Thus, we plug in the enthalpies of formation to obtain:

$\Delta _rH=2(-285.73kJ/mol)+2(-296.84kJ/mol)-2(-20.50kJ/mol)-3(0kJ/mol)\\\\\Delta _rH=-1124.14kJ/mol$

Best regards!

8 0

2 years ago

HCl, NaCl, and CO are all examples of chemical <br> properties<br> bonds<br> formulas<br> changes

Ainat [17]

Answer:

HCL, NACL and CO are the examples of chemical formulas

4 0

2 years ago

A teacher puts two tablets in a glass of water. The teacher

ehidna [41]

This question is incomplete because the options are missing; here are the options:

Which of the following is LESS dense than water?

The spoon

The glass

The tablets

The bubbles

The correct answer to this question is The bubbles

Explanation:

In general, the density of materials and substances affects their buoyancy. This implies in water less dense materials will float and those with higher density will sink. In the situation presented, the only element that is less dense than water are bubbles; this is shown by the movement of the bubbles as these originate in the bottom of the glass of water but they rise to the surface, which shows they are less dense than water.

6 0

3 years ago

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The boiling point of methanol is 64 7°C. Its melting point is -976°C. At room temperature (-25°C), methanol is in which state?

marissa [1.9K]

At -25 °C, methanol, whose boiling point is 64.7 °C and its melting point is -97.6 °C, is in the liquid state.

The melting point is the temperature at which a substance passes from solid to liquid. Below the melting point, a substance is in the solid state. Above the melting point, a substance is in the liquid or gas state.

The boiling point is the temperature at which a substance passes from liquid to gas. Below the boiling point, a substance is solid or liquid. Above the boiling point, a substance is in the gas state.

At -25 °C, methanol is above the melting point (-97.6 °C) and below the boiling point (64.7 °C). Thus, it is in the liquid state.

At -25 °C, methanol, whose boiling point is 64.7 °C and its melting point is -97.6 °C, is in the liquid state.

You can learn more about the melting and boiling points here: brainly.com/question/5753603?referrer=searchResults

3 0

2 years ago

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Please help! brainliest, rattings, thanks, etc.

pochemuha

According to Newton's first law of motion, it takes an unbalanced force to move an object at rest.

I hope this helps :)

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2 years ago