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What are the similarities between acids and bases?

Acids release hydrogen ions into water; bases release hydroxide ions into water. Their differing chemical properties are based on this: acids corrode metals when the hydrogen bonds with metal, while the hydroxide ions in bases destroy proteins.\nAnother difference between acids and bases is their taste. Acids taste sour, while bases taste bitter. Because it is not safe to taste chemicals in a laboratory setting, this is not a recommended test to differentiate between acids and bases. Tasting bases is particularly hazardous due to their ability to destroy proteins in the human body.\nThe relati..

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What does "solute" mean in science?

It is also important to note that a solution is different than a compound, and that the solvent and solute do not have either ionic or covalent bonds between them. Accordingly, pure water is not a solution despite having both hydrogen and oxygen atoms, but salt water, which has unbonded sodium and chloride ions dissolved, is a solution.\nIn liquids, a solution is generally produced by a chemical process. For instance, water becomes salt water when the polar water molecules pull apart the sodium and chloride ions from the salt crystal, which then float in an even distribution through the water...

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What does "positive" mean regarding your blood type?

According to the Canadian Blood Services website, the four major blood groups are A, O, B and AB. These four are then divided into Rh-positive and Rh-negative blood types. Determining a person's blood type is important because the compatibility of blood types varies. In Canada, O Rh-positive blood is the most common blood type, with the rarest being AB Rh-negative. The blood of people with O Rh-negative blood is suitable for transfusion to people with all other blood types. Children might have different blood types than their parents due to the combination of genes that occurs when parent..

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What happens when you mix hydrogen and oxygen?

Demonstrations of what happens when a mixture of hydrogen and oxygen is ignited under controlled conditions are given by college professors for chemistry students, and the result is spectacular. The most famous example of an uncontrolled hydrogen/oxygen reaction is the 1937 Hindenburg disaster. This produced an enormous explosion and a lot of water. The danger of igniting hydrogen and oxygen is that hydrogen is flammable and oxygen supports combustion.\nClean water is an important concern throughout the world, and according to a 2006 United Nations report, up to 20 percent of the world's ..

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What products contain ammonia?

Ammonia is also used to make textiles, synthetic fibers, pesiticides, smelling salts, cleaning products, explosives, rocket fuel and fuel cells. It is also used in some foods and beverages, such as macaroni, skimmed milk powder and gluten products. It is used as an antimicrobial agent for food products such as beef. Anydrous ammonia is used commercially to reduce or destroy microbial contamination of beef. It is also used to control fungal growth in oranges and lemons during warehousing.\nAmmonia is used to make chemical compounds such as nictric acid, cyanide, ammonia nitrate, alprazolam, amm..

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What is the function of a high power objective?

A high power objective is a type of objective lens that is used in microscopes. It magnifies an object to 40 times its size.\nAccording to the Encyclopaedia Britannica, high power objective lenses have several design problems. The front of the objective to the top of the slide is shorter than other objective lens because the focal length of an objective decreases as the N.A. and the magnifying power increase.

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What is a Datura angel trumpet plant?

The Datura plant prefers to grow in full sun conditions with regular watering and weekly fertilizing. It is a fast growing plant that needs yearly repotting because of growth, according to About.com. It can grow between 5 and 8 feet high. Flowers are large and trumpet-shaped, either in white or purple hues. Depending on the cultivar selected, there can be single blooms or double blooms. Datura plants do not react well to cold climates and are killed by frost.

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How are properties useful in classifying materials?

Metals are electrically and thermally conductive, malleable, ductile and possess luster. They also have plastic deformity, meaning that any distortion in shape remains until otherwise changed. Objects that meet all of these criteria are classified as metals. To further classify a metal, a table can be made that contains all of the above characteristics, and they can be grouped by other methods. For example, a list of metals can be made, listed from most conductive to least conductive. Metals may also be grouped by color or hardness. Other properties include chemical reactivity or tensile stren..

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How thick is a piece of paper?

The thickness of paper is affected by its desired use. Pulp is manufactured and manipulated in different ways to obtain the type of paper needed by clients. Printing paper is different in texture and thickness than paper found in note books. Different chemical coatings are also applied to the finished product, depending on what its intended use is.

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What family does lithium belong to?

Other alkali metals include lithium, sodium, potassium and francium. These metals are shiny and soft enough to be cut through with a knife, and they oxidize rapidly when exposed to any source of oxygen. The single, outer electron is easily excited and causes a distinctive flame color in each element, such as crimson for lithium or blue-violet for rubidium. The alkali metals are the most homogenous of any elemental family.

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