1.
What is the best instrument for measuring the volume?
Correct Answer
C. Graduated cylinder
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.
2.
What piece of equipment do you need each time you work with acids, bases, and open flames?
Correct Answer
B. Safety goggles
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.
3.
Correct Answer
evaporating dish
4.
Correct Answer
glass funnel
5.
Correct Answer
beaker
6.
Correct Answer
graduated cylinder
7.
Correct Answer
wire gauze
8.
Correct Answer
well plate
chemplate
9.
Correct Answer
mechanical pipette pump
10.
Correct Answer
Erlenmeyer flask
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
11.
Correct Answer
dropper
12.
Correct Answer
test tube rack
13.
Correct Answer
test tube brush
14.
What does the triple beam balance and digital balance measure?
Correct Answer
mass
Explanation
NOT weight
15.
Correct Answer
triple beam balance
16.
Correct Answer
striker
17.
Correct Answer
beaker tongs
18.
Correct Answer
double buret clamp
19.
Correct Answer
thermometer clamp
20.
Correct Answer
hot hand
21.
Correct Answer
retort stand, Retort stand, Retort Stand, retort stand, stand, Stand
Explanation
A retort 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.
22.
Correct Answer
digital balance
23.
Correct Answer
test tube holder
24.
Correct Answer
burrette
buret
25.
Correct Answer
pipet
pipette
26.
________________
Correct Answer
micropipette
disposable pipet
27.
Correct Answer
goggles
28.
Correct Answer
filtering flask
29.
Correct Answer
Buchner funnel
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).
30.
Name
Correct Answer
scoopula
31.
Name
Correct Answer
ring
32.
Type question here. Example: Practice reveals what you don't ________
Correct Answer
know
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.
33.
Name
Correct Answer
buret
34.
Name
Correct Answer
Bunsen burner
Explanation
The "B" in Bunsen burner must be capitalized because it is named after Robert Bunsen