The literal expression for mercury heating in air is

Verbal expression: mercury + oxygen mercury oxide (under heating conditions).

Chemical equation: 2Hg + O 2Hgo (under heating conditions).

Mercury is the only metal that exists in a liquid state at room temperature and pressure. Mercury vapor can evaporate at room temperature, and vapor is highly toxic. Mercury is ubiquitous in nature, and general animals and plants contain trace amounts of mercury, which can be metabolized through excretion, hair, etc.

1. The text expression of mercury heating in air is mercury + oxygen >heating should be written on the horizontal line) mercury oxide;

2. Mercury is a chemical element, the periodic table.

80th; 27 October of the World Health Organization.

The list of carcinogens published by the International Agency for Research on Cancer (IARC) is preliminarily collated, and mercury and inorganic mercury compounds are in the list of three types of carcinogens.

Mercury is heated in air to form mercury oxide, and the chemical equation of the reaction is: mercury + oxygen heating.

Mercury oxide So the answer is: mercury + oxygen heating.

Mercury oxide

Literal expressions.

Mercury + oxygen -- >heating should be written on the horizontal line) oxygen lifting base to resist mercury (to be honest, the air force is essentially the participation of the front oxygen orthogonal rock).

Chemical formula: 2hg+o2== (write " "2hgo on the horizontal line.)

2hg+o2=2hgo (red powder).

Lavoisier's famous experiment.

Lavoisier heated a small amount of mercury (mercury) in an airtight container for 12 days, and found that some of the silvery-white liquid mercury had turned into a red powder, while the volume of the air in the container had been reduced by almost one-fifth. Lavoisier studied the remaining part of the air and found that it could neither provide breath for humans and animals to sustain human or animal life, nor could it support the combustion of combustibles. This gas came to be known as nitrogen.

Lavoisier then collected the red powder (which has now been shown to be mercury oxide) from the surface of the mercury and placed it in a smaller, smaller container to obtain mercury and oxygen, the volume of which was exactly equal to the volume of the reduced air in the original sealed container. He added the obtained oxygen to about four-fifths of the volume of gas left in the previous container, and the result was that the gas was exactly the same as the physical and chemical properties of air. Through these experiments, Lavoisier came to the conclusion that air is composed of oxygen and nitrogen.

Mercury reacts with oxygen under the condition of heating in air to form mercury oxide, and the chemical equation is 2Hg + O2 2Hgo. Generally, mercury compounds have a valency of +1 or +2, with only mercury tetrafluoride being the +4 valence mercury compound, and +3 mercury nominee collapses not present.

Mercury is a chemical element and is ranked 80th on the periodic table. Commonly known as mercury. There are also other names such as "Bai Lu, Yinnu, Shenjiao, Yuanshui, Lead Essence, Liuzhu, Yuanzhu, Red Mercury, Sand Mercury, Linglu, Living Treasure, Ziming" and so on.

The element symbol Hg, which is in the 6th period, group IIB in the periodic table, is the only metal that exists in a liquid state at room temperature and pressure (in the strict sense, gallium (symbol GA, element 31) and cesium (symbol CS, element 55) are in a liquid state at room temperature (and also in a liquid state).

Soluble in nitric acid and hot concentrated sulfuric acid, mercury nitrate and mercury sulfate are generated, respectively, and mercury salt appears in excess of mercury. It can dissolve many metals and form alloys, which are called amalgam. The valency is +1 and +2.

Similar to silver, mercury can also react with hydrogen sulfide in the air. Mercury has a constant coefficient of bulk expansion, is less metally active than zinc and cadmium, and cannot displace hydrogen from acid solutions.

Mercury is a silvery-white, shiny, heavy liquid that is chemically stable and insoluble in acids or alkalis. Mercury can evaporate at room temperature, and the chemical and slippery compounds of mercury vapor and mercury are highly toxic (chronic). Mercury has been used for a long time and has a wide range of uses.

Mercury reacts with oxygen under heating conditions to form mercury oxide, and the chemical equation of the reaction is: 2Hg + O2 ignition

2hgo So the answer is: 2hg+o2

Ignite2hgo．

Mercury and oxygen are heated to form mercury oxide, and the literal expression of the reaction is mercury + oxygen heating mercury oxide

So the answer is: mercury + oxygen heating.

Mercury oxide