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Carbonates are decomposed by heating in oxides and carbon dioxide; the temperatures of decomposition are:
- Beryllium carbonate: decomposed at room temperature.
- Magnesium carbonate: 400 0C
- Calcium carbonate: 900 0C
- Strontium carbonate: 1 280 0C
- Barium carbonate: 1 360 0C
- Radium carbonate: I have not yet found data.
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What is the difference between Carbonates and Hydroxides?
A carbonate ion is CO3 with a anion of 2- whereas a hydroxide ion is OH with an anion of - Hope this helps.
What group has an oxidation number of 2?
It can be a any group. Generally they shows +2 in group 2.
What is the oxidation number for group 2?
+2 for group 2 elements
Why do elements in group 2 have an oxidation number of 2?
Because there in group 2
Why do elements in group 2 have an oxidation number of plus 2?
Because there in group 2
What do carbonates become more stable to thermal decomposition as they go down group 2?
The size of the group 2 ions gets bigger as we go down the group. Hence, their polarising power also decreases. So, the carbonates are less polarised as we go down the group, requiring more energy to decompose them. Polarising power is the ability of the ion to attract the bonding pair of electrons towards itself.
At what temperatures do the group 2 carbonates decompse?
over 1000 degrees, but it does change with the other metals, i guess you'll have to keep looking
What is stability of transistor?
Transistors need thermal stabilization because the operating point of a transistor junction, similar to a diode, is affected by temperature. In fact, this can cause thermal runaway, and device destruction, if the circuit design does not compensate for this. Answer mostly correct but the operating point of a transistor must remain fixed as temperature varies whether going low or higher. that is mainly the concern about. not runaway that is caused by bad design.
Advantage and disadvantage of fixed bias circuit?
Advantages: 1) This is a simple circuit which uses very few components 2) The operating point can be selected anywhere in the active region of the characteristics by simply changing the value of Rb.Thus,it provides maximum flexibility in the design. Disadvantages: 1) Thermal stability is not provided in the circuit.Thus Q-point is not maintained. Ic = β Ib + Ico Ic = β Ib 2) Since Ib is already fixed,Ic depends on β which changes unit to unit and shifts the Q-point.Thus the stability is very poor.
What chemical classification does dolomite go to?
The chemical classification group that dolomite belongs to is a carbonate. Dolomite is an element of calcium magnesium carbonate and has the chemical formula CaMg(CO3)2.
What is 2-pk Thermal 301?
2-pk thermal 301 = -299
What are 2 indicators of economic stability?
Price Stability and full employment! -A
What 2 elements make water hard?
magnesium and calcium.
Does a base react with carbonates?
Bases dont really react with carbonates, but acid does.
Why do elements in the same group react in the same ways?
It usually reacts the same?Alkali metals all react with water to give a alkali metal hydroxide and hydrogen.I thought you wrote "How do elements in the same group (in the periodic table) usually react?"EDIT: Hmm.... family. Opps I read wrong again.All alkanes contain Carbon-Carbon single bonds.All alkanes combust to give either carbon dioxide and water or carbon monoxide and waterAll alkenes contains Carbon=Carbon double bondAll alkenes decolourises aqueous bromineAll alcohol oxidises to give a carboxylic acid.Lol, that's too many examples....So, yea.... they usually reacts the same too.........
What is a mineral carbonate?
a metal carbonate is a metal that has reacted with another substance to form a metal carbonate (e.g Potassium carbonate [K2CO3]). When they react with an acid they produce A SALT+CO2+H2O.
Did they use a thermal scope in World War 2?
No, thermal imaging is a post war invention.
