SIGNS of a CHEMICAL REACTION (aka a CHEMICAL CHANGE) a GAS is created as a product a TEMPERATURE change temp heat EXITS reaction—EXOTHERMIC temp heat ENTERS reaction-ENDOthermic a DRAMATIC COLOR change Sulfuric acid and sugar shows all 4 signs of a chemical change…BUT ESPECIALLY COLOR CHANGE!
How do you balance acidic redox reactions? How do you know if a chemical reaction will occur? In a chemical equation, where do the reactants appear? What happens in a chemical reaction? What makes balancing redox reactions different from balancing other reactions?
If all of the chemical changes that occur in nature on a given day were listed, the number would be at least in the billions. To study such a large...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your...
Chemical irritants: Nerve cells in the airways sense the presence of unwanted substances in the airways such as pollen, dust, noxious fumes, water, or cigarette smoke. These cells then signal the respiratory centers to contract the respiratory muscles, causing you to sneeze or cough. Coughing an...
they are awake. For example, they may sit up in bed screaming with their eyes wide-open. When they actually do wake up, they usually have no memory of the episode (although some people do remember them). Night terrors occur most frequently in children, but adults can also experience them...
Avoid high-risk food situations (like buffets) where accidental food ingestion can occur. Ask your doctor for a written emergency management plan. Share this plan with your child’s teachers. Inform others that your child is carrying an EpiPen. Always wear a medical band noting food allergies....
There exist different types of energy consumption that occur in our day-to-day life by us, sometimes knowingly and many times unknowingly. They are as follows:- 1. Chemical Energy Consumption These types of energies are contained within bonds between molecules. The sources of such energy are co...
3、 Biosafety cabinet The biosafety cabinet is designed to protect the operator, the laboratory environment and the experimental materials from being exposed to the infectious aerosols and splashes that may occur during the operation of the primary culture, bacterial strains, diagnostic samples and other...
How does gaseous exchange occur between the alveoli and blood capillaries? How do the organs in the respiratory system work together? How does the respiratory system affect other body systems? What makes up the lower respiratory system? How does the structure of the alveoli allow for its function...
Every time a lithium-ion battery goes through a charge cycle, its capacity (the total amount of power it can hold) slightly decreases. That decrease is a normal part of the battery’s lifespan, resulting from physical and chemical changes that occur within the battery during the charge and ...