Chemical Equations

A chemical equation is defined as the short-hand representation of a true chemical reaction with the help of symbols and formula. In this category, there are questions relating chemical equations, symbols and formula.

5,294 Questions
Elements and Compounds
Chemical Equations

When iron III sulfate and sodium sulfide are mixed what is the chemical equation?

If solutions in water of iron(III) sulfate and sodium sulfide are mixed, the reaction is:

Fe2(SO4)3 (aq) + 3 Na2S (aq) => 3 Na2SO4 (aq) + Fe2S3 (s).

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Chemistry
Elements and Compounds
Chemical Bonding
Chemical Equations

Is this the way the chemical equation for Iron oxide written FeO2?

fe + 2 O ------> FeO2 iron II oxide

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Chemistry
Elements and Compounds
Chemical Equations

How do you know if a chemical equation is aqueous?

Is may be written (aq), meaning aqueous, beside the chemical formula. Example =

NaOH(aq) + Zn ---> Na2Zn(OH)4 + H2

This equation is for "Sodium Zincate"

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Elements and Compounds
Chemical Equations

What is the chemical equation for acetylene plus ammoniacal silver nitrate?

i'm not entirely sure but i think its C2H2 + 2AgNO3 -> Ag2C2 + 2HNO3

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Chemistry
Chemical Equations

What is the Chemical equation for liming of lake waters?

calcium carbonate reacts with acid water to form a neutral lake

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Acids and Bases
Metal and Alloys
Chemical Equations

What is the balanced chemical equation of NaOH and H2SO4?

2NaOH + H2SO4 --> Na2SO4 + 2H2O

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Metal and Alloys
Chemical Equations

What is the chemical equation for the preparation of white lotion using sulfurated potash and zinc sulfate?

White Lotion USP is prepared by chemical reaction below between Sufurated Potash and Zinc Sufate. ZnSO4 × 7H2O + K2S3 × K2S2O3 -------> ZnS ¯ + S2 ¯ + K2SO4 + K2S2O3 + 7H2O

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Elements and Compounds
Chemical Equations

What is the balanced chemical equation for ammonia and acetic acid?

This is the formation of Ammonium acetata, NH3 + CH3COOH = CH3COO-NH4+

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Baking Soda (sodium bicarbonate)
Chemical Equations

What is the chemical equation for the reaction of sodium bicarbonate and citric acid?

3NaHCO3 + C6H8O7 --> C6H5Na3O7 + 3CO2 + 3H2O

(sodium bicarbonate) + (citric acid) --> (sodium citrate) + (carbon dioxide) + (water)

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Metal and Alloys
Chemical Equations

What is the chemical equation for liquid gallium?

Just heat gallium to 29.76°C and it will melt on its own.

Ga(s) ---29.76°C---> Ga(L)

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Chemistry
Elements and Compounds
Chemical Bonding
Chemical Equations

Describe the steps in writing a balanced chemical equation?

The number of each element in the reactants side should be equal to the number of the same element in the products side, because we know that the mass of reactants and product must be equal.

As an example :

Nitrogen Gas + Hydrogen gas ---> Ammonia

N2 + 3H2 --> 2NH3

Reactants Products

N : 2 N : 1*2 = 2

H : 2*3 =6 H : 3*2 = 6

NOTE : When you add a coofecient in front of a compound, all the elements in the compound should be multiplied by it.(not just the following element)

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Elements and Compounds
Chemical Equations

What is the balanced chemical equation for gaseous nitrogen dioxide with hydrogen gas to form gaseous ammonia and liquid water?

2NO2(g)+7H2(g)---->2NH3(g)+4H2O(l)

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Biology
Elements and Compounds
Chemical Equations

What is the chemical equation for the rusting of iron?

4Fe + 3O2 + 6H2O ---> 4Fe(OH)3

The chemical equation for rusting of iron is :-

2Fe + 3/2 O2 ----> Fe2O3.xH2O

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Elements and Compounds
Chemical Equations

What mass in grams of sodium hydroxide is produced if 2.0 moles of sodium reacts with water according to the chemical equation?

The mass of NaOH is 79,9942 g.

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Chemistry
Elements and Compounds
Chemical Bonding
Chemical Equations

What is the balanced chemical equation for Fe3O4?

Fe3O4 is the mineral magnetite, with aproper chemical name of Fe(II, III) oxide. it exhibits ferrimagnetism.

It has iron atoms as FeII and FeIII.

An old way of writing it was FeO.Fe2O3

The balanced equation for production from the elements is :-

3Fe + 2O2 -> Fe3O4

Commercially it is made by for example redung Fe2O3 with CO

3Fe2O3 + CO = 2Fe3O4 +CO2

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Chemistry
Elements and Compounds
Acids and Bases
Chemical Equations

How do you balance the chemical equation of 3Na plus AlCl3 - 3NaCl plus Al?

it is already balanced

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Chemistry
Periodic Table
Chemical Bonding
Chemical Equations

What does a coefficient do in a chemical equation?

A coefficient is a number, a multiplier or a factor which measures a property.

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Chemistry
Chemical Equations

What does a two- direction arrow indicate in a chemical equation?

We usually think of chemical reactions as reactions becoming products. Reality is that products can also become reactants by a reverse reaction. A two-directional arrow indicates that the "forward" and "reverse" reactions exist in a certain balance, or equilibrium.

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Chemistry
Elements and Compounds
Chemical Bonding
Chemical Equations

What information in a balanced chemical equation shows how many moles of a reactant are involved in the reaction?

The coefficient (not a subscript or superscript) placed immediately before the formula of the reactant in the equation shows how many moles of a reactant are involved in the reaction. If there is no explicit coefficient, a value of 1 for the coefficient is assumed.

The coefficient in front of the molecule tells its relative number of moles.

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Chemistry
Chemical Equations

What is the chemical equation shows the formation of water from hydrogen and oxygen?

2H2 (g) + O2 (g) --> H2O (l)

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Chemistry
Elements and Compounds
Chemical Equations

What does 2H2 means in chemical equation?

H2 is a hydrogen molecule made of two hydrogen atoms bonded together.

The preceding two refers to the number of moles of H2 molecules in the chemical equation.

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Chemistry
Elements and Compounds
Atoms and Atomic Structure
Chemical Equations

What is the balanced chemical equation for burning candle wax?

Unbalanced: C25H52 + O2 → CO2 + H2O

Balanced: C25H52 + 38 O2 → 25 CO2 + 26 H2O

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Elements and Compounds
Chemical Equations

What is the Chemical equation for sodium added to water?

The chemical equation for sodium added to water is : 2Na(s) + 2H2O(l) ----> 2NaOH(aq) + H2(g) Hope this helps all the rising chemistry students! :D

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Chemistry
Elements and Compounds
Chemical Equations

What is the balanced chemical equation for NaOH and KHP?

KHC8H4O4(aq) + NaOH(aq) → KNaC8H4O4(aq) + H2O(l)

NaOH(aq) + KHP(aq) => Na+ + KP- + H2O(l)

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Elements and Compounds
Chemical Equations

What is the balanced chemical equation for the decomposition of ammonium nitrate?

NH4NO3(aq) → N2O(g) + 2H2O(l)

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