When you increase the mechanical advantage you pay for it by have to move the effort a greater distance.
So test each of the list and decide whether when using the machine you increase or decrease the distance moved by the effort.
Start with the inclined plane and consider lifting a load with or without the inclined plane
Answer:
The correct answer is , Weak bonds are transient and easily reversible.
Explanation:
Molecules or atom that associate to produce a weak bond can interact, and then separate .this is evident in hydrogen bond and vanderwaal force where the combined effect can produce emergent properties.
Example; the hydrogen bonds present in water molecule; when the bonds are broken using heat, the molecules are separated or released in form of vapor, this same molecule can combine again by condensation to produce liquid. showing clearly how transient and reversible the bonds between them is.
According to the octet rule, atoms tend to gain, lose, or share electrons until they are surrounded by__8__ valence electrons.
Answer:
![K_p= 0.00016](https://tex.z-dn.net/?f=K_p%3D%200.00016)
Explanation:
The relation between Kp and Kc is given below:
Where,
Kp is the pressure equilibrium constant
Kc is the molar equilibrium constant
R is gas constant
T is the temperature in Kelvins
Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)
For the first equilibrium reaction:
Given: Kc = 0.50
Temperature = ![400^oC=[400+273]K=673K](https://tex.z-dn.net/?f=400%5EoC%3D%5B400%2B273%5DK%3D673K)
R = 0.082057 L atm.mol⁻¹K⁻¹
Δn = (2)-(3+1) = -2
Thus, Kp is:
![K_p= 0.00016](https://tex.z-dn.net/?f=K_p%3D%200.00016)
I think O and Cl will form covalent bonds since they are both non-metals and don't have a large enough difference in electronegativities to create an ionic bond.
I hope this helps. Let me know if anything is unclear.