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Is Calcium Oxide a solid at room temperature?
Yes, calcium oxide is a solid at room temperature. It has a high melting point of 2,572 degrees Celsius, so it remains in a solid state at typical room temperatures.
What raw material does calcium oxide come from?
Calcium occurs most commonly in sedimentary rocks, but is also found in igneous (relating to fire) and metamorphic rocks, cheifly in silicate minerals. Calcium can be obtained by electrolyzing a mixture of lime and mercury, as was first discovered by Sir Humphry Davy in England, during 1808.
Why does calcium oxide have a high melting point?
as all of its molecules are packed closely together and have a strong bond!
What is the balanced symbol equation and the physical state of calcium oxide plus hydrochlroric acid-- calcium chloride plus water?
CaO(aq) + 2HCl(aq) -> CaCl2(aq) + H2O(l) An ionic bonded and dissociated compound, calcium oxide, reaction with a fully dissociated strong acid, hydrochloric acid that produces a dissociated salt, calcium chloride and water.
What is the state symbol for molten iron iii oxide?
The state symbol for molten iron III oxide is (l), which represents liquid.
Is calcium oxide the same as calcium monoxide?
No, calcium oxide and calcium monoxide are not the same. Calcium oxide (CaO) is a compound formed from calcium and oxygen, where the calcium has a +2 oxidation state. In contrast, calcium monoxide (CaO) would suggest a +1 oxidation state for calcium, which is not a stable or common form. Therefore, calcium oxide is the correct term for the compound formed by calcium and oxygen.
What is the oxidation state of Calcium-?
The oxidation states of calcium are +2, +1. It is considered to be a strongly basic oxide.
Is Calcium Oxide a solid at room temperature?
Yes, calcium oxide is a solid at room temperature. It has a high melting point of 2,572 degrees Celsius, so it remains in a solid state at typical room temperatures.
What is the state symbol for calcium oxide?
symbol of calcium is Ca
When calcium oxide changing to calcium hydroxide is a chemical?
Anytime you have a reaction that changes the state of the matter, such as the change from calcium oxide to calcium hydroxide, it is a chemical reaction. Ex. CaO+H2 reacts to form CaOH you then must balance the charges by putting a 2 in front of CaO and CaOH 2CaOH + H2 reacts to form 2CaOH
Which is more basic calcium carbonate or calcium oxide?
Calcium oxide is a compound of calcium and oxygen and has the formula CaO. It is very basic (alkaline) and will react with water to form calcium hydroxide, Ca(OH)2 which is a strong base. Calcium oxide is commonly called lime or quicklime.Calcium carbonate is a compound of calcium, carbon, and oxygen with the formula CaCO3. It is mildly basic and will not react with water nor is it water soluble. It is commonly called calcite, limestone, or marble.
What Is The Chemical State of a Marble?
The chemical name of marble is calcium carbonate formed by the reaction of calcium oxide with carbon dioxide... CaO + CO2 --> CaCO3 I hope this would help u...........
Why can't calcium carbonate exist in a liquid state nor in the gaseous state?
In suitable conditiopns of temperature and pressure, not available here on Earth, it can exist as a liquid or a gas. However, here on Earth, in STP conditions. solid calcium carbonate decomposes on heating ( red glowing heat) directly into calcium oxide and carbon dioxide. Here is the reaction eq'n CaCO3(s) == heat==> CaO(s) + CO2(g).
What is the chemical formula acid?
AnswerLimestone is largely composed of calcium carbonate, also known as CaCO3.This can become quicklime (Calcium Oxide) and carbon dioxide from high levels of heat. This can be shown as:Calcium Carbonate = Calcium Oxide + Carbon Dioxide.CaCO3 = CaO + CO2Quicklime can become slaked lime (solid state) or limewater (aqueous state) or calcium hydroxide from adding water. This produces heat in an exothermic reaction.Calcium hydroxide = Calcium Oxide + WaterCaOH2 = CaO + H2
What state is mercuric oxide in?
Mercuric oxide is in the solid state.
What is the final oxidation state of calcium after reaction?
The final oxidation state of calcium after a reaction depends on the specific reaction and compounds involved. Calcium commonly forms a +2 oxidation state by losing two electrons. However, it can also form other oxidation states, such as +1 in certain compounds or complexes. To determine the final oxidation state after a reaction, one must consider the rules of oxidation states and analyze the compound formed.
How can you tell difference between calcium oxide and calcium carbonate?
There are several tests, ranging from a product test (react the sample with acid and then find out what is produced) to a phase test (heat a sample to the midpoint of the melting points of the "suspects" and observe its state).
