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Nesterboy [21]
3 years ago
11

1.Compare and contrast the rate of solution formation between the three physical forms of salt that were placed in the vial and

not agitated with the three forms of salt that were placed in the vial and were agitated.
2. On the basis of your results, what is the relationship between the temperature of the solvent and the rate of solution formation?
3. Use your knowledge of collision theory to explain the results of your experiments in this laboratory.
Chemistry
1 answer:
lawyer [7]3 years ago
8 0

<span>The stable form of salt at standard temperature and pressure is solid. If you add water to salt, it will dissolve. However, there are certain factors that affect the rate of solution formation of salt. The rate of formation of salt solution is faster when the vial is agitated than when it is not agitated. By agitating the solution, you are increasing the surface area of the salt particles in contact with water.</span>

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11. Many metals are described as ductile, which means they can be
lbvjy [14]

Answer:

Option (3)

Explanation:

Ductility of a substance is defined as the property by which a substance can be hammered and change its form into thin, stretched wires. In simple words, the ductile materials can be drawn into thin wires. Some of the examples of ductile substances are gold, copper and silver.

The rocks also have this property which means that they have the capacity to get deformed into enormous strains in the absence of large scale fracturing.

Thus, the correct answer is an option (3).

5 0
3 years ago
The density of methanol is 0.787 g/ml. What is the mass in grams of 25.0 ml of methanol? Give your answer with the correct unit
Sveta_85 [38]

Answer:

19.6 g is the mass of methanol

Explanation:

Density of methanol is 0.787 g/mL.

Density means mass / volume

Methanol density = Methanol mass / Methanol volume.

Let's replace in the formula

0.787 g/mL = Methanol mass / 25 mL

0.787 g/mL . 25 mL = Methanol mass → 19.6 g

8 0
3 years ago
What can you assume about the anions in the ionic compound copper(II) fluoride? A. The charge on the ionic compound is 2+.
erastova [34]
The answer is C, because if the copper has a +2 charge, the fluoride must have a -2 charge in order to cancel out.
4 0
3 years ago
A mixture of gases has 0.3000 mol of CO2, 0.2706 mol of SO2 and 0.3500 mol of water vapor. The total pressure of the mixture is
notka56 [123]

Answer:

Partial pressure SO₂ → 0.440 atm

Explanation:

We apply the mole fraction concept to solve this:

Moles of gas / Total moles = Partial pressure of the gas / Total pressure

Total moles = 0.3 moles of CO₂ + 0.2706 moles of SO₂ + 0.35 moles H₂O

Total moles = 0.9206 moles

Mole fraction SO₂ = 0.2706 moles / 0.9206 moles → 0.29

Now, we can know the partial pressure:

0.29 = Partial pressure SO₂ / Total pressure

0.29 = Partial pressure SO₂ / 1.5 atm

0.29 . 1.5atm = Partial pressure SO₂ → 0.440 atm

8 0
3 years ago
Elements found in the same periods of the modern periodic table are _____.
Dennis_Churaev [7]
Try C I’m sorry if you get it wrong but I’m like 90% sure
5 0
2 years ago
Read 2 more answers
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