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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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What is the effect of a catalyst on a reaction? It increases the entropy. It decreases the entropy. It changes the equilibrium.
Leto [7]

Answer: It increases the entropy

Explanation:

Entropy is the measure of degree of randomness or disorder.

Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.

A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and more molecules convert to products. Thus leading to more randomness and more entropy.

4 0
3 years ago
Which of these objects converts light/radiant energy to chemical energy?
ludmilkaskok [199]

Answer:

nuclear power plant

Explanation:

because it's a nuclear power plant it's supposed to do that

3 0
3 years ago
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A major component of gasoline is octane (C8H8). When liquid octane is burned in air it reacts with oxygen (O2) gas to produce "0
qwelly [4]

Answer:

0.0063 mol

Explanation:

Step 1: Write the balanced combustion equation

C₈H₁₈(l) + 12.5 O₂(g) ⇒ 8 CO₂(g) + 9 H₂O(g)

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of C₈H₁₈ to CO₂ is 1:8.

Step 3: Calculate the number of moles of C₈H₁₈ needed to produce 0.050 moles of CO₂

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3 0
3 years ago
What is the molarity of a solution of 0.2 moles of Potassium Oxide
egoroff_w [7]

The molarity of a solution : 0.4 M

<h3>Further explanation</h3>

Given

0.2 moles of Potassium Oxide

500 ml of water = 0.5 L

Required

The molarity

Solution

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solution or mmol in each ml of solution

\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}

Assume volume of solution = volume of water(addition of solution volume from volume Potassium Oxide is negligible

Input the value :

M = 0.2 : 0.5

M = 0.4

3 0
3 years ago
Name a type of asteroid and give a description.
IceJOKER [234]

Answer:

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Explanation:

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3 years ago
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