What Happens When mercuric oxide is heated?
(i) When mercuric oxide (HgO), a red solid, is heated at a very high temperature, it decomposes to give mercury (Hg), a grey residue and Oxygen gas (O2) liberates.
Is mercuric oxide toxic?
cause Mercury poisoning. Symptoms include tremors (shaking), trouble remembering and concentrating, gum problems, increased salivation, loss of appetite and weight, and changes in mood and personality. These can be severe and cause hallucinating and psychosis. ► Mercuric Oxide may damage the kidneys.
What is the decomposition reaction for HgO?
Mercuric oxide (HgO) decomposes on heating to give mercury (Hg) and oxygen (O2). It is a thermal decomposition reaction and the balanced equation can be written as: 2HgO(s)→heat2Hg(l)+O2(g)
What happens when mercuric oxide decomposes?
Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas. Mercury(II) oxide is a red solid. When it is heated, it decomposes into mercury metal and oxygen gas. A reaction is also considered to be a decomposition reaction even when one or more of the products are still compounds.
What is the chemical equation for the decomposition of mercury oxide in words?
The decomposition of mercuric oxide (Hg)) on heating, resulting in the formation of mercury and oxygen, is represented by the following chemical equation- 2HgO+180kJ⟶2Hg+O2.
What kind of energy decomposes mercury II oxide?
HgO decomposes on exposure to light or on heating above 500 °C. Heating produces highly toxic mercury fumes and oxygen, which increases the fire hazard. Mercury(II) oxide reacts violently with reducing agents, chlorine, hydrogen peroxide, magnesium (when heated), disulfur dichloride and hydrogen trisulfide.
What is oxide poisoning?
Nitrogen dioxide poisoning is the illness resulting from the toxic effect of nitrogen dioxide (NO. 2. ). It usually occurs after the inhalation of the gas beyond the threshold limit value.
How do you dissolve mercuric oxide?
Dissolve in 2 mL of dilute hydrochloric acid (1:1), add about 40 mL of water, filter if necessary, and dilute with water to 100 mL.
What type of reaction is HgO → HgO 2?
Explanation: Reddish Mercury(II)oxide solid is decomposed (broken down) upon heating into silver liquid mercury and colourless oxygen gas. This is a decomposition reaction.
What occurs during a decomposition reaction?
A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.
What happens when mercuric oxide HgO is heated give chemical equation?
How do oxides of nitrogen cause death?
On migrating to the bloodstream, nitrogen dioxide poisoning results in an irreversible inhibition of the erythrocyte membrane acetylcholinesterase which may lead to muscular paralysis, convulsions, bronchoconstriction, the narrowing of the airways in the lungs (bronchi and bronchioles) and death by asphyxiation.
At what temperature does HgO decompose?
HgO decomposes on exposure to light or on heating above 500 °C.