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GREYUIT [131]
3 years ago
7

Read each statement regarding food and beverages in the lab and determine if each is true or false.

Chemistry
1 answer:
Scrat [10]3 years ago
6 0

Answer:

1. True

2. False

3. False

4. True

Explanation:

A lab is an abbreviation for laboratory and it can be defined as a building that is equipped with scientific equipments and apparatus, which are used for performing scientific experiments, manufacturing of chemicals and drugs, research, testing and analysis of hypothesis in order to establish a theory.

Generally, laboratory scientists, technicians, students and anyone going into a laboratory is prohibited from taking in edible items such as food and water.

Basically, all laboratories are required to place a visible warning sign around the lab prohibiting the bringing in and ingestion of food in any form.

1. True: Tobacco products of all kinds are prohibited in lab.

2. False: Beverages are allowed in lab as long as they are in containers with lids. It's completely prohibited from the lab so as to prevent food poisoning.

3. False: Chewing gum is okay in the lab as long as you don't blow bubbles.

4. True: Food items should not be brought into the lab.

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Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies
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Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies appear at the bottom of the mass because of high power of solubility.

<h3>What is lattice energy? </h3>

The lattice energy is defined as the energy change upon the formation of one mole of crystalline ionic compound from its same constituent ions, that are assumed to be initially in the state of gases. It is also defined as measure of the cohesive forces which bind ionic solids together.

As the lattice energy of the ionic compound increase the solubility of that particular compound decrease. Hence compound which have low lattice energy are more soluble than compound having high lattice energy. When molten rocks cools and solidified, the compound having smallest lattice energy become more soluble than crystals of compound which have large lattice energy. Therefore, crystal of compound with the smallest lattice energy start appearing at the bottom of the mass.

Thus, we concluded that due to high solubility power of compound with low lattice energy appear at the bottom of the mass.

learn more about lattice energy:

brainly.com/question/13169815

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