HgO is only stable in +2 oxidation state, so it is weakly amphoteric. PbO reacts with hydrochloric acid and sodium hydroxide both, so it is amphoteric. PbO2 reacts with hydrochloric acid and sodium hydroxide both so, it is amphoteric.

This is a combination reactions because the mercury (Hg) plus the oxygen gas (O2) come together to form the Mercury (II) oxide (MgO). Put a “2” in front of the HgO.

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds. 2HgO→2Hg+O2.

Product description. Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, has a formula of HgO. It has a red or orange color.

O is a balanced element because there is the same number of atoms of O in each side of the equation. All elements have the same number of atoms in each side of the equation, which means that the law of conservation of mass is satisfied and the chemical equation is balanced.

Yes, the equation is balanced. There are the same number of Hydrogen (H) and Oxygen (O) atoms on both sides of the equation.

What is the balanced chemical equation for the reaction that takes place between bromine and sodium iodine? Br2 + 2NaI –> 2NaBr + I2. with charges this equation looks like : Br2(^-1) + Na(^-1)I(^-1) —> NaBr + I2. next, you have to balance.

Br2 + NaI = NaBr + I2 | Chemical reaction and equation.

potassium chloride

reactants → products. When appropriate, a symbol may be written above or below the arrow to indicate some special circumstance. The symbol “Δ” is often used to indicate that the reaction is to be heated. The presence of the arrow also indicates that the reaction goes in one direction under the conditions indicated.

A (usually small) change in value. Often shown using the “delta symbol”: Δ Example: Δx means “the change in the value of x” When we do simple counting the increment is 1, like this: 1,2,3,4,…

The mathematical symbol for “average” is an italicized “x” with a horizontal line over it. The most common type of average is the mean, though other types exist. “Mean” and “median” are both types of averages.

< Less Than and > Greater Than This symbol < means less than, for example 2 < 4 means that 2 is less than 4. ≤ ≥ These symbols mean ‘less than or equal to’ and ‘greater than or equal to’ and are commonly used in algebra.

Modern uses. The letter ð is sometimes used in mathematics and engineering textbooks, as a symbol for a spin-weighted partial derivative.

“Æ (minuscule : æ) is a grapheme named æsc or ash, formed from the letters a and e, originally a ligature representing the Latin diphthong ae. It has been promoted to the full status of a letter in the alphabets of some languages, including Danish , Norwegian , Icelandic , and Faroese .

ESL: The ‘voiced th’ /ð/ and ‘unvoiced th’ /θ/ sounds are the only pair of English sounds that share a single, common spelling. To pronounce the sounds, the tip of the tongue is placed behind the top front teeth. The friction occurs between the tip of the tongue and the top front teeth.

Subject: Re: What is ∂ called? Steven, My Calculus text uses a symbol that looks something like a backwards 6 to indicate a partial derivative. Yes, that’s the standard symbol for a partial derivative.

Ethane Combustion Reaction

The combustion of methane or octane is exothermic; it releases energy. CH4 + 2 O2 → CO2 + 2 H2O + energy The energies of the products are lower than the energiies of the reactants.

We now have 4 H atoms on both sides. We now have 4 O atoms on both sides. CH4 + 2O2 → CO2 + 2H2O. The equation is now balanced.

Octane is a straight chain alkane composed of 8 carbon atoms. It has a role as a xenobiotic. N-octane is a colorless liquid with an odor of gasoline. Less dense than water and insoluble in water.

Ammonia reacts with oxygen to form nitrogen and water.

o The new chemical equation is N2 +H2 →2 NH3 Reactants Products Nitrogen 2 2 Hydrogen 2 6 Since NH3 is multiplied by a coefficient of 2 there are now 2 nitrogens and 6 hydrogens. The 6 hydrogens come from the 2 multiplied by the subscript of 3.

Catalyst used in the oxidation of ammonia by oxygen In industrial scale, platinum, rhodium are used as catalyst because they are very much efficient. In the laboratory scale, copper is used because it is cheaper element than platinum and rhodium.

d) Ammonia gas reacts with oxygen in the presence of platinum at 900º C to form nitric oxide nd steam.

Catalytic oxidation of ammonia occurs when ammonia and oxygen are combined in the presence of high heat and a catalytic metal. Ammonia is then oxidized into nitric oxide. In a separate container, oxygen continues oxidizing the nitric oxide into nitrogen dioxide gas, which is absorbed by water.

ammonia decomposition reaction – Students | Britannica Kids | Homework Help. In this chemical reaction, two molecules of ammonia (NH3) are decomposed, or broken down, into one molecule of nitrogen (N2) and three molecules of hydrogen (H2).

(1) Ammonia is composed of one nitrogen and three hydrogen atoms so it is a compound. Therefore it can be broken down by chemical change.

Ammonia’s high boiling point relative to its heavier congeners is indicative of the formation of strong hydrogen bonding, which also results in a high heat of vaporization (23.35 kJ/mol). Liquid ammonia is a good solvent for organic molecules (e.g., esters, amines, benzene, and alcohols).