Laboratory Equipment - Can You Identify?

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2. What piece of equipment do you need each time you work with acids, bases, and open flames?

Beaker

Safety goggles

Electronic balance

Buret

When working with acids, bases, and open flames, safety goggles are necessary to protect the eyes from potential splashes or spills. Acids and bases can cause severe burns or damage to the eyes, while open flames pose a risk of sparks or hot particles reaching the eyes. Wearing safety goggles creates a barrier between the eyes and these hazardous materials, ensuring safety and preventing any potential injuries. Therefore, safety goggles are essential equipment in such situations.

Explanation

When working with acids, bases, and open flames, safety goggles are necessary to protect the eyes from potential splashes or spills. Acids and bases can cause severe burns or damage to the eyes, while open flames pose a risk of sparks or hot particles reaching the eyes. Wearing safety goggles creates a barrier between the eyes and these hazardous materials, ensuring safety and preventing any potential injuries. Therefore, safety goggles are essential equipment in such situations.

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7. Type question here. Example: Practice reveals what you don't _____

Practice reveals what you don't know. This means that through practicing a skill or activity, you become aware of the areas where you lack knowledge or proficiency. By repeatedly practicing and identifying your weaknesses, you can then focus on improving those areas and becoming more knowledgeable and skilled overall.

Explanation

Practice reveals what you don't know. This means that through practicing a skill or activity, you become aware of the areas where you lack knowledge or proficiency. By repeatedly practicing and identifying your weaknesses, you can then focus on improving those areas and becoming more knowledgeable and skilled overall.

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9. What is the best instrument for measuring the volume?

Beaker

Erlenmeyer flask

Graduated cylinder

Evaporating dish

Erlenmeyer flask

A graduated cylinder is the best instrument for measuring volume because it has precise and accurate markings along its side, allowing for more precise measurements compared to other instruments like beakers or Erlenmeyer flasks. Additionally, the graduated cylinder has a narrow and uniform shape, which reduces the chances of errors due to meniscus or spillage. The cylindrical shape also allows for easy reading of the volume at eye level, ensuring accurate measurements. Overall, the graduated cylinder is specifically designed for measuring volume and provides the most reliable and accurate results.

Explanation

A graduated cylinder is the best instrument for measuring volume because it has precise and accurate markings along its side, allowing for more precise measurements compared to other instruments like beakers or Erlenmeyer flasks. Additionally, the graduated cylinder has a narrow and uniform shape, which reduces the chances of errors due to meniscus or spillage. The cylindrical shape also allows for easy reading of the volume at eye level, ensuring accurate measurements. Overall, the graduated cylinder is specifically designed for measuring volume and provides the most reliable and accurate results.

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15.

A ring stand is a piece of laboratory equipment used to hold and support apparatus such as test tubes, flasks, or other equipment that needs to be held in place, often during heating or experiments involving liquids and gases. It usually has a heavy base to keep it stable and is often used with clamps or rings to hold various pieces of lab equipment securely.

Explanation

A ring stand is a piece of laboratory equipment used to hold and support apparatus such as test tubes, flasks, or other equipment that needs to be held in place, often during heating or experiments involving liquids and gases. It usually has a heavy base to keep it stable and is often used with clamps or rings to hold various pieces of lab equipment securely.

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24.

The "E" in Erlenmeyer has to be capitalized because it is named after the German chemist Emil Erlenmeyer (1825– 1909), who created it in 1860

Explanation

The "E" in Erlenmeyer has to be capitalized because it is named after the German chemist Emil Erlenmeyer (1825– 1909), who created it in 1860

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30.

The "B" in Buchner has to be capitalized because it is named after a German chemist Ernst Büchner (18 March 1850 – 25 April 1924).

Explanation

The "B" in Buchner has to be capitalized because it is named after a German chemist Ernst Büchner (18 March 1850 – 25 April 1924).

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