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GaryK [48]
3 years ago
14

Can someone please help me??? Please!!!???

Chemistry
1 answer:
nirvana33 [79]3 years ago
7 0
Color (intensive) with a color pallet or a colorimeter or spectrophotometerdensity (intensive) with a balance and a water-filled cylindervolume (extensive) with a cylindermass (extensive) with a balance

boiling point (intensive): the temperature at which a substance boils (with a thermometermelting point (intensive): the temperature at which a substance melts

temperature<span>, pressure, and </span>density<span>. A few other examples are </span>heat<span> capacity, </span><span> </span>thermal<span> conductivity, and electrical conductivity.

conductometer,  

</span>

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A lawnmower runs on gasoline.what type of energy transformation takes place in its engine?
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Consider the insoluble compound nickel(II) hydroxide , Ni(OH)2 . The nickel ion also forms a complex with cyanide ions . Write a
natali 33 [55]

Answer: Equilibrium constant for this reaction is 2.8 \times 10^{15}.

Explanation:

Chemical reaction equation for the formation of nickel cyanide complex is as follows.

Ni(OH)_{2}(s) + 4CN^{-}(aq) \rightleftharpoons [Ni(CN)_{4}^{2-}](aq) + 2OH^{-}(aq)

We know that,

      K = K_{f} \times K_{sp}

We are given that, K_{f} = 1.0 \times 10^{31}

and,    K_{sp} = 2.8 \times 10^{-16}

Hence, we will calculate the value of K as follows.

     K = K_{f} \times K_{sp}

     K = (1.0 \times 10^{31}) \times (2.8 \times 10^{-16})

        = 2.8 \times 10^{15}

Thus, we can conclude that equilibrium constant for this reaction is 2.8 \times 10^{15}.

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How many moles of hydrogen molecules (h2) would be required to produce two moles of hydrogen peroxide (h2o2)?
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