What is chemical equation for water?
What is chemical equation for water?
2H2(g) + O2(g) → 2H2O(l ) Chemical equations give the following information about chemical reactions. Chemical equations show the formulas for the substances that take part in the reaction. The formulas on the left side of the arrow represent the reactants, the substances that change in the reaction.
What is the equation for H2O?
For example, it is known that two molecules of hydrogen gas, H2, react with one molecule of oxygen gas, O2, to form two molecules of water, H2O. This reaction may be represented by the chemical equation 2H2+O2→2H2O.
What is the physical and chemical properties of oxygen?
Chemical properties of oxygen – Health effects of oxygen – Environmental effects of oxygen
| Atomic number | 8 |
|---|---|
| Density | 1.429 kg/m3 at 20°C |
| Melting point | -219 °C |
| Boiling point | -183 °C |
| Vanderwaals radius | 0.074 nm |
What is the physical properties of oxygen?
Oxygen is a colorless, odorless, tasteless gas. It changes from a gas to a liquid at a temperature of -182.96°C (-297.33°F). The liquid formed has a slightly bluish color to it. Liquid oxygen can then be solidified or frozen at a temperature of -218.4°C (-361.2°F).
What are the chemical properties of iron?
Chemical properties of iron – Health effects of iron – Environmental effects of iron
| Atomic number | 26 |
|---|---|
| Electronegativity according to Pauling | 1.8 |
| Density | 7.8 g.cm-3 at 20°C |
| Melting point | 1536 °C |
| Boiling point | 2861 °C |
What are 5 chemical properties iron?
The Chemical Properties of Iron are as follows:
- Chemical Formula : Fe.
- Toxicity : Non Toxic.
- Reactivity with water : Reacts with very hot water and steam to produce hydrogen gas.
- Oxidation : Readily combines with oxygen in moist air which produces iron oxide also known as rust.
- Solubility : Dissolves in acids.
What is the structure of iron?
Iron has two different crystal structures at atmospheric pressure: the body centered cubic (bcc) and the face centered cubic (fcc). In the ground state the bcc α-phase is stable, and at the temperature T=1184 K (A3 point), α-Fe transforms into fcc α-Fe, which is stable up to 1665 K(A4 point).
Where is iron used?
Iron is an enigma – it rusts easily, yet it is the most important of all metals. 90% of all metal that is refined today is iron. Most is used to manufacture steel, used in civil engineering (reinforced concrete, girders etc) and in manufacturing.
What is iron and its types?
Types of iron. There are two major types of iron produced: wrought iron and cast iron. Within those, cast iron includes its own family of metals.
What are 2 uses of iron?
Uses of iron
- It is used to manufacture steel and also used in civil engineering like reinforced concrete, girders etc.
- Iron is used to make alloy steels like carbon steels with additives such as nickel, chromium, vanadium, tungsten, and manganese.
What is the importance of iron today?
Iron is a mineral vital to the proper function of hemoglobin, a protein needed to transport oxygen in the blood. Iron also has a role in a variety of other important processes in the body. A shortage of iron in the blood can lead to a range of serious health problems, including iron deficiency anemia.
What iron means?
(Entry 1 of 3) 1 : a silver-white malleable ductile magnetic heavy metallic element that readily rusts in moist air, occurs in pure form in meteorites and combined in most igneous rocks, is the most abundant element on Earth by mass, and is vital to biological processes — see Chemical Elements Table.
What is the another name for iron?
Atomic Number 26, Carbonate de Fer Anhydre, Citrate de Fer, Elemental Iron, Fe, Fer, Fer Élémentaire, Ferric Iron, Ferric Orthophosphate, Ferrous Carbonate Anhydrous, Ferrous Citrate, Ferrous Fumarate, Ferrous Gluconate, Ferrous Iron, Ferrous Pyrophosphate, Ferrous Sulfate, Ferrum Phosphoricum, Fumarate de Fer.