A tremor is a type of involuntary shaking movement. Involuntary means you shake without trying to do so. A tremor is often most noticeable in your hands, but may affect any body part (even your head or voice).
There are three main types of tremors:
Tremor - hand; Hand tremor; Tremor - arms; Kinetic tremor; Intention tremor; Postural tremor
ConsiderationsTremors can happen at any age but tend to be more common in older people. Everyone has some tremor when they move their hands. Stress, fatigue, anger, fear, caffeine, and cigarettes may temporarily make this type of tremor worse.
However, a tremor that does not go away over time may be a sign of an underlying medical problem and should be evaluated. You may learn that your tremor is perfectly normal, but eliminating medical reasons for the shaking is important.
Essential tremor is the most common tremor. It is rarely seen when the hands are not being used. It becomes most apparent when you are trying to do something, such as reaching for an object or writing. It is not caused by an underlying disease. This type of tremor may also run in families
Irreversible
no. because italian dressing is a suspension of oil,vinegar
Vinegar and oil will separate. Shaking it mixes them together.
One should shake an oil/vinegar dressing to temporarily blend the ingredients. If you poured before shaking, you might end up with nothing but oil on salad.
physical- there's no chemical change.
No, using an emulsifier with vinegar and oil does not create a chemical reaction. An emulsifier helps to create a stable mixture of two immiscible substances, like vinegar and oil, by dispersing the oil droplets throughout the vinegar. This is a physical process, rather than a chemical reaction.
French dressing does not have a chemical formula because it is not a chemical. It is a mixture made of different components like vinegar, olive oil, etc. that have their own chemical formulas.
Oil and vinegar have different densities and do not mix easily, so they naturally separate into two layers. The oil layer floats on top because it is less dense than vinegar. Mixing or shaking the dressing helps temporarily emulsify the two liquids, but they will eventually separate again due to their different properties.
yes because salad dressing is a suspension of vinegar that will separate into layers if left undisturbed.
Oil and vinegar are a mixture. After a while they will separate.
Water would freeze the fastest because it has a higher freezing point than vinegar and oil. Vinegar and oil have lower freezing points due to their chemical properties, so they would take longer to freeze compared to water.
Because they are not soluble together as they have different densities. The same reason oil floats on water. Vinegar is more dense than oil, so in a sense, its sinking.