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Zinaida [17]
2 years ago
15

When thermal energy is added to an object, what happens to the motion of the particles?

Chemistry
1 answer:
Novay_Z [31]2 years ago
3 0
The atoms start vibrating faster
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!!!Need answer for chem homework ASAP PLS !!!!
stealth61 [152]

Answer:

The answer to your question is: kc = 6.48

Explanation:

Data

             Given                 Molecular weight

CaO =    44.6 g                    56 g

CO₂ =     26 g                       44 g

CaCO₃ = 42.3 g                  100 g

Find moles

        CaO                 56 g ----------------  1 mol

                                 44.6 g --------------   x

                               x = (44.6 x 1) / 56 = 0.8 mol

        CO₂                 44 g -----------------  1 mol

                                26 g ----------------    x

                               x = (26 x 1 ) / 44 = 0.6  moles

        CaCO₃            100 g ---------------   1 mol

                                42.3g --------------    x

                              x = (42.3 x 1) / 100 = 0.423 moles

       

Concentrations

 

        CaO     =    0.8 / 6.5  = 0.12 M

         CO₂    =     0.6 / 6.5 = 0.09 M

        CaCO₃  =   0.423 / 6.5 = 0.07 M

Equilibrium constant =   \frac{[products]}{[reactants]}

Kc = [0.07] / [[0.12][0.09]

Kc = 0.07 / 0.0108

kc = 6.48

7 0
3 years ago
Which one of the following to all methods of heat transfer require?
nignag [31]

Answer:

A

Explanation:

A difference in thermal energy

7 0
3 years ago
the process of separating a liquid/solid mixture by slowly pouring the liquid component into a new vessel as the solid settles t
olga55 [171]

The process involving separation of liquid/solid mixture as regards this question is Decantation.

  • Decantation can be regarded as one of the process used in separation of liquid from solid as well as  other immiscible (non-mixing) liquids through the removal of  the liquid layer that is present at the top from the layer of solid/liquid which present at the below.
  • In the process, the liquid will be poured slowly into another vessel as the pouring continues, then the solid will settle in the original vessel.
  • This process can be done through tilting the mixture after the the top layer have been poured out.

<em>Therefore, decantation is one of the separation technique.</em>

Learn more at: brainly.com/question/16937734?referrer=searchResults

5 0
2 years ago
What reactions is : energy released as light or thermal energy ( synthesis, combustion, replacement, decomposition)
Levart [38]
This answer is synthesis
7 0
3 years ago
Which Group 2A element would you expect to be the most reactive?
ahrayia [7]

Answer:

Calcium

Explanation:

It has the largest atom

8 0
3 years ago
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