When calcium oxide reacts with water, the temperature of the mixture ___. A. decreases rapidly B. increases significantly C. remains unchanged D. fluctuates slightly 相关知识点: 试题来源: 解析 B。氧化钙与水反应是放热反应,会使混合物的温度显著升高,故选 B。反馈...
Calcium hydroxide and hydrogen gas are generated when calcium reacts with water. This is a single displacement reaction. The equation is: Ca + 2H2 O... See full answer below.Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question ...
A direct application is inhaled nitric oxide therapy (iNO), where patients directly inhale NO gas. The gas is highly reactive, as it readily diffuses across biological membranes. Upon introduction to the tissue, the NO can react immediately with oxygen, superoxide anions, redox metals, or hemogl...
Fire extinguishing agentmist water, sand Occupational StandardTLV-TWA 2 mg/m3; STEL 5 mg/m3 DescriptionCalcium oxide (CaO, CAS Reg. No. 1305-78-8) is also known as lime, quick lime, burnt lime, or calx. Lime does not occur naturally since it reacts so readily with water (to form ...
Depending on the calcium carbide content, the cyanamide reacts with water (moisture from air or soil) to produce acetylene and hydrated calcium oxide or calcium hydroxide. Absorption of water during handling or storage of technical calcium cyanamide may cause explosion [Pieri, M. Chem. Abs. 46,...
Formerly produced byelectrolysisof anhydrous calcium chloride, pure calcium metal is now made commercially by heating lime with aluminum. The metal reacts slowly withoxygen, water vapour, andnitrogenof the air to form a yellow coating of the oxide, hydroxide, and nitride. It burns in air or p...
In the latter, the doses of inert-marker are taken with the main meals. The excretion of inert marker indicates the completeness of faecal collections and permits corrections for variations in faecal passage (Stanley and Cheng, 1957). Used for these purposes are: chromic oxide (Whitby and ...
Compounds: The important compounds of calcium are calcium hydroxide, calcium oxide, calcium peroxide, calcium chloride, calcium fluoride, calcium carbide, calcium hydroxide, calcium cyanamide, calcium carbonate, calcium hypochlorite, calcium sulfate, etc. Calcium reacts with liquid ammonia to form...
Calcium propionate, with the chemical formula C6H10CaO4, has the CAS number 4075-81-4. It is a white crystalline solid with a faint, moldy odor. Its basic structure consists of a calcium ion bonded to propionate ions. This compound is highly soluble in water. Calcium propionate is generally...
Reacts with water and with acids releasing chlorine. Forms explosive compounds with ammonia and amines. Strong oxidizer. Other incompatible materials include organics, nitrogen containing compounds, dry chemical fire extinguishers containing mono-ammonium phosphate, combustible or flammable materials. /Calcium...