Answer:
Macromolecules. A very large organic molecule composed of many smaller molecules, 1)Carbohydrates, 2)proteins, 3)lipids, 4)nucleic acids. Three of the four classes of macromolecules that are polymers. 1.Carbohydrates.
Answer:
Ionic compounds that ionize completely in water
The percent by volume of ethanol in the solution 30% ((150/500)*100%) based on the Law of Conservation of Mass. The object's mass before a reaction and after a reaction is equal according to the Law of Conservation of Mass. The dissolved ethanol become the part of the solution but it does not decrease its volume.
Answer:
Electrons would easily move through the person if there was no rubber around the wire.
Explanation:
The black rubber material is an insulator and will not allow the conduction of heat or electrical current through it. Electrical currents are generated by the movement of electrons through materials.
<em>Hence, if there was no rubber covering around the power cord, the person that plugged-in the power cord would have experienced electric shock because electrons would easily move through him/her from the wire. </em>
Answer:
The equilibrium constant K is 0.1967
Explanation:
Chemical equilibrium is a state of a reacting system in which no observed changes over time, even though the reaction continues. It occurs in reversible reactions, where the rate of reaction of reagents to products is the same as that of products to reagents.
The chemical equation can be written as:
a A + b B → c C + d D
Where a, b, c, d are the stoichiometric coefficients of the reaction and A, B, C, D are the symbols or formulas of the different substances involved.
The equilibrium constant K can be defined as the ratio between the product between the concentrations of the products (in equilibrium) raised to their corresponding stoichiometric coefficients, and the product of the concentrations of the reactants (in equilibrium) raised in their corresponding stoichiometric coefficients:
![Kc=\frac{[C]^{c} *[D]^{d} }{[A]^{a} *[B]^{b} }](https://tex.z-dn.net/?f=Kc%3D%5Cfrac%7B%5BC%5D%5E%7Bc%7D%20%2A%5BD%5D%5E%7Bd%7D%20%7D%7B%5BA%5D%5E%7Ba%7D%20%2A%5BB%5D%5E%7Bb%7D%20%7D)
In this case:
![Kc=\frac{[CO]*[H_{2}O] }{[CO_{2}]*[H_{2}] }](https://tex.z-dn.net/?f=Kc%3D%5Cfrac%7B%5BCO%5D%2A%5BH_%7B2%7DO%5D%20%7D%7B%5BCO_%7B2%7D%5D%2A%5BH_%7B2%7D%5D%20%20%7D)
You know that:
Replacing:

Kc= 0.1967
<u><em>The equilibrium constant K is 0.1967</em></u>