Answer:
a ruler or measuring cups are ways of measuring
Explanation:
The unit for work is ENERGY
Atomic radius
Explanation:
A decrease in moving from the bottom of Group 3 to the top of the group shows an increase in trend from top to bottom.
The atomic radius of elements increases from top to bottom and decreases from the bottom to the top.
The elements in group 3 are B, Al , Ga, In and Tl
- Atomic radius is taken as half of the inter-nuclear distance between two covalently bonded atoms of non-metallic elements or half of the distance between two nuclei in the solid state of metals.
- Downs a group from top to bottom, atomic radii increases progressively due to successive shells being added.
- This compensates for the size reducing effect of the increased nuclear charge.
learn more:
Atomic radii brainly.com/question/5048216
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<h3>
Answer:</h3>
![\displaystyle K_{eq} = \frac{[H_2]^2[O_2]}{[H_2O]^2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20K_%7Beq%7D%20%3D%20%5Cfrac%7B%5BH_2%5D%5E2%5BO_2%5D%7D%7B%5BH_2O%5D%5E2%7D)
<h3>
General Formulas and Concepts:</h3>
<u>Chemistry</u>
<u>Aqueous Solutions</u>
<u>Kinetics</u>
<u>Equilibrium</u>
- Equilibrium Reactions RxN ⇄
- Equilibrium Constants
- Equilibrium Expression:
![\displaystyle K = \frac{[Producst]^{coefficients}}{[Reactants]^{coefficients}}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20K%20%3D%20%5Cfrac%7B%5BProducst%5D%5E%7Bcoefficients%7D%7D%7B%5BReactants%5D%5E%7Bcoefficients%7D%7D)
<h3>
Explanation:</h3>
*Note: Only gases and liquids affect equilibrium
<u>Step 1: Define</u>
[RxN - Balanced] 2H₂O (g) ⇄ 2H₂ (g) + O₂ (g)
<u>Step 2: Identify</u>
[Reactant] H₂O
[Product] H₂
[Product] O₂
<u>Step 3: Write K Expression</u>
- Substitute:
![\displaystyle K_{eq} = \frac{[H_2]^2[O_2]}{[H_2O]^2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20K_%7Beq%7D%20%3D%20%5Cfrac%7B%5BH_2%5D%5E2%5BO_2%5D%7D%7B%5BH_2O%5D%5E2%7D)