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borishaifa [10]
4 years ago
10

Any reaction that absorbs 150 kcal of energy can be classified as ________.

Chemistry
1 answer:
Ivanshal [37]4 years ago
7 0

Answer:

a. endothermic

Explanation:

  • Endothermic reaction: is a chemical reaction that absorbs heat or energy through the reaction.

  • While, exothermic reaction: is a chemical reaction that releases energy through light or heat. It is the opposite of an endothermic reaction.

<em>So, Any reaction that absorbs 150 kcal of energy can be classified as </em><em>a. endothermic.</em>

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Answer:

Final concentration = 0.019 M

Explanation:

Initial Concentration [A]o = 0.27M

Rate constant, k = 0.75 s^-1

Final concentration [A] = ?

Time, t = 1.5s

The relationship between the variables is given by the equation;

ln[A] = ln[A]o - kt

ln[A] = ln(0.27) - (0.75)(1.5)

ln[A] = - 1.309 - 1.125

ln[A] = - 2.434

[A] = 0.019 M

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What would the formula of an ionic compound made of Aluminum and Oxygen be?
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Answer:

Sodium Aluminate

Formula:-

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3 years ago
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Argon is a suitable choice for light bulbs because it is inert. Compared to a reactive gas like oxygen, the metal filimant would burn up in a reactive environment, which is why a noble gas is used.
7 0
3 years ago
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Brilliant_brown [7]

3-ethyl-2.4-dimethyl-octanoic acid

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How would I find the number of protons, neutrons and electrons when I only have the atomic number and atom (assignment says assu
coldgirl [10]

Explanation:

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