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lukranit [14]
3 years ago
10

Which property indicated a minerals response to ultraviolet light?

Chemistry
2 answers:
kherson [118]3 years ago
4 0
A. Flueorescece. <span>The light from these ultraviolet lamps reacts with the chemicals of a mineral and causes the mineral to glow.

Hope I get Brainliest</span>
Bas_tet [7]3 years ago
3 0
The correct answer is- A.  Fluorescene
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if only 0.264 g of ca(oh)2 dissolves in enough water to give 0.178 l of aqueous solution at a given temperature, what is the ksp
Maurinko [17]

The ksp value for calcium hydroxide at this temperature is 5.20 × 10⁻⁶.

<h3>What is ksp?</h3>

Ksp is an equilibrium constant of a solid substance dissolved in a liquid solution.

Given that, the volume of water is 0.178 l, 0.264 g of Ca(OH)² dissolves in enough water

The solution equilibrium is

Ca(OH)² = Ca + 2OH

The molar solubility is

0.186 / 74.00  / 0.230 = 0.0109 M

The ksp value will be

Ksp = (s) (2S)²

Putting the values in the formula

(0.0109) x (2 x 0.0109)² = 5.20 × 10⁻⁶.

Thus, the ksp value for calcium hydroxide is 5.20 × 10⁻⁶.

To learn more about ksp value, refer to the link:

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8 0
1 year ago
Which answer below is not an indication that a chemical reaction has occurred?
ankoles [38]
Only when there is no product that is when a chemical reaction has not occured
4 0
3 years ago
How many moles of HCl are present in 1.30 L of a 0.50 M solution
Shtirlitz [24]

Answer:

0.65moles of HCl was produced

4 0
2 years ago
How US is the most developed country?
8090 [49]
 I believe in what USA was and is able to achieve, and trust the nation in many but every ways. What really made it a developed nation is the things that happened in the last 3 Centuries, some of which are;

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3 years ago
Is each of these statements true? If not, explain why.(g) The rate of a reaction increases as the reaction proceeds.
Elina [12.6K]

The rate of a reaction rises as it progresses. The answer is false

<h3>What causes a reaction's rate to increase?</h3>

Generally speaking, raising the temperature of the reaction system, raising the concentration of a reactant in solution, and raising the surface area of a solid reactant will all raise the rate of a reaction. A catalyst can be added to the reaction mixture to speed up a process as well.

As reactants are used up, reactions often get slower with time. Catalysts are substances that, when added to a process, speed it up even if they are not themselves reactants.

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7 0
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