What is ulcer?
An open sore on an external or internal surface of the body, caused by a break in the skin or muccos membrane which fails to heal.


What causes of ulcer?
An ulcer regardless of the causes, can cause abdominal pain, bleeding or even cause a whole.
stomach and duodenal ulcers are usually due to one of two causes the bacterium Helicobacter Pylori or non steroidal anti, inflammatory drugs.


What your feeling during a ulcer?
The most common symptom of peptic ulcers is abdominal pain. stomach ulcer pain usually i the upper middle part of the abdomen, above the belly button and below the breastbone. can feel burning or gnawing and it may go through to the back.


Prevention's
Some helpful tips to prevent or allow healing of ulcers include. Avoid foods that irritate your stomach, take non steroidal anti-inflammatory drugs with food, as this may decrease your risk of irritating the lining of your stomach. learn how to control your stress levels.


Treatment
non steroidal anti-inflammatory
cimetidine
lansoprazole

Chemical potential energy is the energy stored in the chemical bonds of a substance. The various chemicals that make up gasoline contain a large amount of chemical potential energy that is released when the gasoline is burned in a controlled way in the engine of the car. The release of that energy does two thingsIn thermodynamics, chemical potential of a species is a form of energy that can be absorbed or released during a chemical reaction or phase transition due to a change of the particle number of the given species.

Food Energy

Foods are composed chiefly of carbohydrates, fats, proteins, water, vitamins, and minerals. ... An older metric system unit of energy, still widely used in food-related contexts, is the calorie; more precisely, the "food calorie", "large calorie" or kilocalorie (kcal or Cal), equal to 4184 joules.

specific study in physical and chemical change


physical change- ice melting and water boiling
chemical change- bread turning into toast and cooking an egg

Explain what filtration and evaporation is

Filtration works because any tiny dissolved molecule particles OR the liquid molecules are too small to be filtered and pass through the filter paper with the equally tiny water molecules. Evaporation means a liquid changing to a gas or vapour.