Why does the mass change?

Why does the mass change? The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object. Since mass doesn’t change, when the kinetic energy of an object changes, its speed must be changing. Special Relativity (one of Einstein’s 1905 theories) deals with […]

Is phenolphthalein pink in acid?

Is phenolphthalein pink in acid? Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. What is a scale used to describe how acidic or basic a solution is? pH. This is the scale used to describe how acidic or basic […]

What is the lifespan of a hurricane?

What is the lifespan of a hurricane? 12 to 24 hours Has there ever been 2 hurricanes in the Gulf? Has there ever been two hurricanes in the Gulf at the same time? No. The closest seems to be on Sept 4, 1933, when a major hurricane was over south Florida and another major hurricane […]

What is the heat of solution quizlet?

What is the heat of solution quizlet? heat of solution. the amount of heat absorbed or released when a solute dissolves in a specific amount of solvent. What is heat of solution measured in? The enthalpy change is observed when the solute is dissolved in the solvent. When solid or gas is dissolved in the […]

What was the first unit of measurement?

What was the first unit of measurement? cubit Do they use CM in China? When measuring your height in Chinese, centimetres and metres are used instead of feet and inches. Our next buzzword to learn is Height. What are the tools for measuring length? List of Measuring Tools for Length Traditional Measurement Units. The Ruler […]

What is type solution of brass?

What is type solution of brass? Brass is an alloy made primarily of copper, usually with zinc. Usually you can think of brass as a solid solution consisting of zinc and other metals (solutes) dissolved in copper (solvent). How do you classify brass? According to the hardness, brass includes soft, semi-hard, hard and very hard […]

What is a solubility graph?

What is a solubility graph? A solubility graph is drawn to display the solubility at different temperatures. From reading a solubility graph, one can determine the mass of solute that can dissolve at specific temperatures, whether or not a solution is saturated, and compare solubilities of different substances at specific temperatures. Which of the following […]

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