The reaction for Na2CO3, sodium carbonate, and HCl, hydrochloric acid, is 2HCl + Na2CO3 -> 2NaCl + CO2 + H2O. Two moles of hydrochloric acid and one mole of sodium carbonate form two moles of salt, one mole of carbon dioxide and one mole of water in an irreversible reaction.
Sodium carbonate, also known as soda ash and washing soda, is a naturally occurring base that takes the form of a solid white powder. Hydrochloric acid is found in the stomach, and one of its many uses is to remove metal deposits. If both of the substances are concentrated when they react, their reaction is extremely vigorous.Learn More
A Petri dish is a shallow dish that is used to culture microorganisms. By mixing different ingredients, such as blood, salts, amino acids or bacteria, together with an agar (or medium), scientists are able to observe reactions and watch microorganisms grow and develop.Full Answer >
Some lethal poisons that can be found in a typical household include formaldehyde, ammonia, bleach, ethylene glycol, sodium hydroxide, sulfuric acid, p-dichlorobenzene and naphthalene. Products that contain these chemicals vary, but all of them are common household items.Full Answer >
In chemistry, a physical change occurs when matter is altered without modifying its basic molecular composition. Some examples of physical changes include boiling or freezing of water, chopping up wood, melting of gold or dissolving salt in water.Full Answer >
Calcium is a metallic element that burns when introduced to oxygen to form calcium oxide. The red and white flame burns intensely, resulting in a white powder.Full Answer >