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timama [110]
3 years ago
13

When using a crucible and lid, why must the crucible and lid be inspected for cracks before using?

Chemistry
2 answers:
kicyunya [14]3 years ago
7 0
If it has cracks it can shatter during heating due to temperature change.
Nana76 [90]3 years ago
3 0

Explanation:

A crucible and lid plays an important role in carrying out a reactions as they help the container or vessel to be tightly closed so the no other gases from the atmosphere can enter the vessel.

Moreover, it helps in maintaining the temperature of vessel.

Therefore, when the crucible and lid be inspected for cracks before using then it should not be used because during the reaction it is possible that it will break.

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Drag each label to the correct location on the table.
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Explanation:

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P\propto \frac{1}{V}     (At constant temperature and number of moles)

  • When the size of the chamber is increased the volume occupied the gas will increase with which pressure exerted by the gas will decrease down.
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2) Charles' Law: This law states that volume occupied by the gas is directly related to the temperature of the gas at constant pressure and number of moles.

V\propto T    (At constant pressure and number of moles)

  • The size of the balloon deceases because the in winters the temperature decreases with which volume of the gas present in the balloon also decreases.
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3) Avogadro's Law: This law states that volume occupied by the gas is directly related to the number of moles of the gas at constant pressure and temperature.

V\propto n   (At constant temperature and pressure)

When we blow air into the balloon the umber of air particles increases with which the volume of the gas inside the balloon also increases resulting in increase in size of the balloon.

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3 years ago
Select the correct answer. A light source emits white light. A red-colored filter is fitted over the light. What color will a pe
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Does water added to a flask containing chlorine gas and solid sodium react in the chemical reaction to make sodium chloride
Jet001 [13]

Answer:

Explanation:

Chemically, we can have a reaction between chlorine gas and solid sodium

This reaction is actually explosive and would produce fine powder of sodium chloride

We have the reaction as follows:

2Na_{(s)}+Cl_{2(g)}\rightarrow2NaCl_{(s)}

Essentally, what we can deduce from here is that we do not need to add water to the flask. Except for the reason that we would want the sodium chloride solid in the solution form, there is absolutely no reason to add water to the flask as the reaction would proceed normally

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If 7.84 × 107 J of energy is released from a fusion reaction, what amount of mass in kilograms would be lost? Recall that c = 3
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3 years ago
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the chemical formula for copper iodide is Cul. How many atoms of copper(Cu) is it made from? How many atoms of iodine(I)?
Alexandra [31]
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