A:Sweating in humans demonstrates water’s tendency to absorb heat by overcoming the hydrogen bonds that hold its molecules together. This property makes it possible for humans to stay cool via sweating, because water requires immense levels of energy to evaporate.
A:Sodium bisulfate is a dry acid often used as a fungicide, herbicide, pH adjuster or microbiocidein. It comes in a variety of consistencies, such as a powder, granular or crystal form, and is commonly found in metal finishing and swimming pool and household cleaning products.
A:An easy example of a solid, liquid and gas is ice, water and water vapor. Solid, liquid and gas are the three main forms that matter can exist in. Solid water is ice, liquid water is water and gaseous water is water vapor.
A:Oxygen is one of the primary components that allows air to be breathable to people and it began forming in the atmosphere approximately one billion years ago. Until the ozone layer formed, most life on the planet was restricted to the oceans.
A:Louis Pasteur was a scientist who developed important vaccines and came up with the process of pasteurization for foods. He is credited with discoveries that laid the foundation for the study of microbiology and modern medicine.
A:The reaction between chalk and vinegar is a neutralization reaction between calcium carbonate and acetic acid to produce water, carbon dioxide and calcium acetate. Carbon dioxide is a gas that causes the reaction to bubble.
A:Existing oil was formed from the remains of microscopic plants and animals that died in the ocean between 10 and 600 million years ago. When these organisms died, they became buried in the mud and sand at the bottom of the sea. Over millions of years, sedimentary layers of decayed organisms were formed.
A:According to Elmhurst College, rubber can expand because the molecules inside it are coiled up like a spring. Those molecules can then be expanded or compressed, giving rubber its characteristic elasticity.
A:In chemistry, the term "property" is frequently used to describe the attributes of a substance, such as density, oxidation, state of matter, mass, conductivity, color, bonding and many other traits. These properties are used to understand how a substance behaves in different situations.
A:Hydrogen is used to manufacture the important chemical compounds ammonia and methanol, according to the Essential Chemical Industry. It is also used in such oil refinery processes as reforming, in which sulfur compounds are removed from petroleum to improve the petroleum's quality.
A:Stainless steel is available in many different alloys that incorporate several different elements, but the essential components are iron, carbon and chromium. Low-carbon steel with at least 12-percent chromium forms an even layer of protective oxide on its surface and is, therefore, stainless.
A:The density of rubber is dependent upon the kind of rubber; hard rubber has a density of 74 lb/foot cubed, while soft commercial rubber has a density of 69 lb/foot cubed and pure gum rubber has a density of 57-58 lb/foot cubed. The term "rubber" has had many meanings over the years, including as a reference to a horse towel in 1598 and a polished brick in 1744 before it came to mean the elastic substance used today.
A:Sugar and salt crystals are made of entirely different elements and have very different chemical and physical properties. While both dissolve readily in water, they dissolve in different ways, and unlike sugar, the dissolution of salt is largely unaffected by temperature. Their greatest similarities are in their common appearance as small white crystals and their use in the preparation and flavoring of food.