Covalent compounds are generally not very hard because they are formed by two or more nonmetallic atoms.
<h3>COVALENT COMPOUNDS:</h3>
Covalent compounds are compounds whose constituent elements are joined together by covalent bonds.
Covalent bonding occurs when two or more nonmetallic atoms of an element share valence electrons. This means that covalent compounds will not be physically hard since they constitute non-metals.
Examples of covalent compounds are:
- H2 - hydrogen
- H2O - water
- HCl - hydrogen chloride
- CH4 - methane
Learn more about covalent compounds at: brainly.com/question/21505413
Answer:
a. -58 millivolts
Explanation:
The given Nernst equation is:
![E_{ion} = 58 millivolts /z \Big[ log_{10} \Big( \dfrac{[ion]_{out}}{[ion]_{in}}\Big) \Big]}](https://tex.z-dn.net/?f=E_%7Bion%7D%20%3D%2058%20millivolts%20%2Fz%20%5CBig%5B%20log_%7B10%7D%20%5CBig%28%20%5Cdfrac%7B%5Bion%5D_%7Bout%7D%7D%7B%5Bion%5D_%7Bin%7D%7D%5CBig%29%20%5CBig%5D%7D)
The equilibrium potential given by the Nernst equation can be determined by using the formula:
![E_{Cl^-} = \dfrac{2.303*R*T}{ZF} \times log \dfrac{[Cl^-]_{out}} {[Cl^-]_{in}}](https://tex.z-dn.net/?f=E_%7BCl%5E-%7D%20%3D%20%5Cdfrac%7B2.303%2AR%2AT%7D%7BZF%7D%20%5Ctimes%20log%20%5Cdfrac%7B%5BCl%5E-%5D_%7Bout%7D%7D%20%7B%5BCl%5E-%5D_%7Bin%7D%7D)
where:
gas constant(R) = 8.314 J/K/mol
Temperature (T) = (20+273)K
= 298K
Faraday constant F = 96485 C/mol
Number of electron on Cl = -1




Grinding pepper. It is still pepper.
I hope this helps!
Answer:

<em>The body regulates those levels in an example of homeostasis. When levels decrease, the parathyroid releases hormones. If calcium levels become too high, the thyroid helps out by fixing calcium in the bones and lowering blood calcium levels. The nervous system helps keep homeostasis in breathing patterns.</em>