A chemical reaction in which compounds break up into simpler constituents is a _______ reaction.a. combination
b. decomposition
c. double replacement
d. substitution

Answers

Answer 1

Answer: the awnser to ur question is B

Answer 2

Answer:

B. Decomposition, I remember reading this in my student workbook. Hope this helped!

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Heat energy is always released during what type of process?

Answers

In the exothermic process.. Have a great day!

What kind of bond would a metal and a nonmetal typically make?A. An Ionic bond
B. A Metallic bond
C. A Double bond
D. A Covalent bond

Answers

A) ionic bond.......

The answer is A. An ionic bond.

For Gay-Lussac's law, temperature is measured in _____.

Answers

For Scientist Joseph Louis Gay-Lussac's law, temperature is measured on an absolute scale, specifically Kelvins or k. The formula may be expressed in P/T=k (P over T equals k). The answer to this question is 'kelvins'. I hope this helps.

Which process is accompanied by a decrease in entropy?(1) boiling of water(2) condensing of water vapor(3) subliming of iodine(4) melting of ice

Answers

The correct answer is option 2. Condensing water vapor is accompanied by a decrease in entropy. Entropy is the degree of disorderliness in a system. We know that among all phases the most ordered is solid which means it has the least entropy while the opposite is the gas phase.

Answer:

2) condensing of water vapor

Explanation:

Entropy is the measure of disorder in a system. Disorder means how "separated" and distanced the molecules, particles, etc. are from each other. Solids and crystals have rigid structures meaning that they have less disorder than gases and liquids that have free structures. Gases and liquids have a higher disorder than solids and crystalline structures. An increase in entropy means that the disorder is increasing; more heat and energy are being added. A decrease in entropy means that the disorder is decreasing and the structure becomes more rigid and ordered; less heat and energy are being added. So the condensing of water vapor means that disorder is decreasing, thus the entropy is decreasing.

I hope this makes sense :)

What is the nuclear equation for the alpha decay of 173 Yb?

Answers

Yb 173 turns into Er 169 after alpha decay. you can find that by knowing an alpha particle is basically a helium nucleus with 2 protons and 2 neutrons. That means that Yt 173 loses 2 protons and 2 neutrons when undergoing alpha decay.

How many moles are in 4.818 x 1024 chloride ions