Magnesium is an alkaline metal and its symbol is Mg. The chemical formula for copper sulfate is CuSO4. Magnesium reacts with copper sulfate to form magnesium sulfate and copper metal. The balanced equation for the reaction is;

Mg + CuSO4 ------ > MgSO4 + Cu

One mole of magnesium metal reacts with one … Read more

Solids can be classified on the basis of the regular arrangements of constituent atoms, ions or molecules. There are two types of solids in this respect including crystalline solids and amorphous solids. Those solids or substances in which atoms, ions or molecules are arranged in a definite three dimensional pattern are called crystalline solids or … Read more

Calcium is an alkaline metal and its symbol is Ca. Iodine is a halogen and its symbol is I. There are two atoms present in the valence shell of calcium and calcium loses two electrons to become stable. Therefore, the valency of calcium is +2. Iodine has seven electrons in valence shell and requires one … Read more

The chemical formulas for barium chloride and nitric acid are BaCl₂ and HNO₃ respectively. The reaction between barium chloride and nitric acid is a double displacement reaction. Barium chloride is combined with nitric acid to yield barium nitrate and hydrochloric acid. The chemical formulas for barium nitrate and hydrochloric acid are Ba(NO₃)₂ and 2HCl. The … Read more

3x+2y=11 ------(a)

5x-4y=11 ------ (b)

Multiply the equation (a) by 2 and add it to equation (b)

2(3x + 2y) + 5x - 4y= 2*11 + 11

6x + 4y + 5x - 4y = 22 + 11

11x = 33

Dividing by 11 on both sides

x … Read more

A salt is formed by the neutralization of a base and an acid. A positive charged ion and a negative charged ion are combined to form a salt. When a salt is added to water, it decomposes into its cation and anion. Electricity passes through a substance due to the flow of free ions or … Read more

Oxygen is a chemical element and its symbol is O. The atomic number of oxygen is 8 and its atomic mass is 16 amu(atomic mass unit). Oxygen belongs to the non-metals family. Oxygen is present in sixteenth group of periodic table. Oxygen is the second element of the sixteenth group. Therefore, the period number of … Read more

Vinegar = CH3COOH

Baking soda = NaHCO3

The reaction between vinegar and baking soda is a double displacement reaction. Vinegar reacts with baking soda to form sodium acetate and carbonic acid. Carbonic acid is unstable so, it decomposes into carbon dioxide and water. The balanced equation for the reaction is;

CH3COOH + … Read more

Helium is the first element of eighteenth group of periodic table. It is a noble gas and its symbol is He. The atomic mass of helium is 4. Its atomic number is 2.

Number of protons = atomic number

So,

Number of protons = 2

In a neutral atom, … Read more

The least common multiple of two or more numbers is equal to the product of common factors and uncommon factors of all the numbers.

Factors of 8 = 2 x 2 x 2

Factors of 12 = 2 x 2 x 3

Factors of 16 = 2 x 2 x 2 … Read more

The equation for ideal gas is;

PV = nRT

P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature

V = nRT / P

If the number of moles and pressure of the gas are kept constant, then … Read more

Sulfur dioxide is a chemical substance. The molecular formula for sulfur dioxide is SO2. There are three atoms, including one atom of sulfur and two atoms of oxygen, present in one molecule of sulfur dioxide. The molar mass of sulfur dioxide is 64.07 grams per mole. Its normal phase is gas. It is a colorless … Read more

Zinc hydroxide = Zn(OH)2

Acetic acid = CH3COOH

Zinc acetate = Zn(CH3COO)2

Water = H2O

Zinc hydroxide reacts with acetic acid to form zinc acetate and water. It is a neutralization reaction because a base (Zn(OH)2) and an acid (CH3COOH) are reacted to form a salt (Zn(CH3COO)2) and water. The balanced … Read more

Magnesium chloride = MgCl2

Silver nitrate = AgNO3

Magnesium chloride reacts with silver nitrate to form magnesium nitrate and silver chloride. The chemical formulas for magnesium nitrate and silver chloride are Mg(NO3)2 and AgCl respectively. The balanced equation for the reaction is;

MgCl2 + 2AgNO3 ------ > Mg(NO3)2 + 2AgCl

Phosphorus is chemical element and its symbol is P. Phosphorous is a nonmetal. Its atomic number is 15. The standard atomic weight of 30.97 grams per mole. It is solid at room temperature. The melting and boiling points of phosphorous are 317.3 kelvin and 550 kelvin respectively. It is present in 15th group and 3rd … Read more

The chemical formulas for barium nitrate and ammonium carbonate are Ba(NO3)2 and (NH4)2CO3. The reaction between barium nitrate and ammonium carbonate is a double displacement reaction. Barium nitrate reacts with ammonium carbonate to yield barium carbonate and ammonium nitrate. The balanced equation for the reaction is;

Ba(NO3)2 + (NH4)2CO3 ------ > BaCO3 + 2NH4NO3 … Read more

Sodium is a chemical element and present in the first group of periodic table. Magnesium is also an element and present in the second group of periodic table. Sodium is an alkali metal and magnesium is an alkaline metal. Magnesium reacts with sodium chloride to yield magnesium chloride and sodium metal.

NaCl ------ > … Read more

Sodium chloride is a neutral substance. A salt is made up from a metal and non-metal. Sodium chloride is consist of two particles including sodium ion and chloride ion. Sodium chloride is formed when sodium hydroxide reacts with hydrochloric acid. Sodium hydroxide is a base and hydrochloric acid is an acid. The process of formation … Read more

Oxygen is a chemical element and its symbol is 'O'. The atomic number of oxygen is 8. The atomic mass of oxygen is 16. It is a non-metal. The chemical formula for carbon dioxide gas is CO₂. It is chemical compound and its normal phase is gas. A molecule of carbon dioxide is made up … Read more

Titanium is a chemical element of periodic table and its symbol is Ti. It is a transition metal. It is present in fourth group and fourth period of periodic table. The atomic number of titanium is 22. The atomic weight of given titanium is 50. The number of protons and electrons in the titanium is … Read more