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melamori03 [73]
3 years ago
11

After spilling a liquid solution on a lab table, Ari grabs a trash can and paper towels. He then begins to soak up the solution

and wipe down the table. After throwing away the paper towels, he washes his hands since he was not wearing gloves. What is the most important safety reason why Ari should have waited and asked his teacher for instructions before cleaning up the spill? The liquid solution might have been dangerous to touch with bare hands. The teacher might have had specific towels that should be used for spills. The teacher would probably have offered to clean up the mess. The liquid solution could have caused a smell if left in the trash can.
Chemistry
1 answer:
devlian [24]3 years ago
4 0

Answer: The correct statement is the liquid solution might have been dangerous to touch with bare hands.

Explanation:

In the question, it is given that Ari has wiped the spilled liquid with paper towels without putting on the gloves.

While working in a lab, one must follow some safety rules:

  • There are chemicals all around the lab, so it should be handled with care that is by wearing gloves.
  • If by chance there is spilling on liquid on the shelf, it should be cleaned with the help of paper towels while wearing gloves.
  • Any chemical must not be touched with bare hands.

Hence, the correct answer is  the liquid solution might have been dangerous to touch with bare hands.

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Significant digits are the number of digits that reflect the precision of a measurement or number.
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Answer:

True

Explanation:

Significant digits are numbers that helps to present the precision of measurements calculations.

Numbers that do not contribute to the precision of a reading should not be counted as significant.

There are rules of assigning significant numbers:

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The diagram shows the process of the water cycle on Earth. Heat from the Sun causes water to evaporate: the liquid water turns i
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The diagram below shows the different aspects of the water cycle, such as how water is observed by plants and how it is carried around by the atmosphere.

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1. Photosynthesis

Unlike other plants that photosynthesize with their leaves, cacti do so with their stems. At night, they take in carbon dioxide, which is then used during the day.  

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One attribute that makes cacti not lose a lot of water is the fact that they have waxy surfaces that prevent evaporation. Some species also have ribbed surfaces that prevent splitting even when the plant expands during desert rainstorms.

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Cacti have spines that protect them from being eaten by animals. The spines also act as insulation during the dry seasons.

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A cactus is able to survive in the desert due to the following features:

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Its stem is covered with a thick waxy layer to retain water.

This shows how cactuses can survive without water and this relates to what the diagram shows however, the diagram shows that rain takes a part in the water cycle, whereas for cactuses, they don't need much water due to their extreme adaptivity.

But there are some similarities too, for example cactuses are still plants so they still photosynthesise and give us oxygen and whatnot.

Forgive me if this is wrong, I tried my best <3 Have a great day

(Forgive me if this is too long just use the important part)

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Answer:

Explanation:

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