Answer:
Distance lift the tree = 0.5 m
Explanation:
Given:
Work done = 50 joules
Force = 100 newton
Find:
Distance lift the tree
Computation:
Distance = Work done / Force
Distance = 50 / 100
Distance = 0.5 m
Distance lift the tree = 0.5 m
Answer:
The number of valence electrons increases from left to right.
Explanation: The number of valence electrons increases going across a period, or row in the periodic table, for example, group 1 elements have 1 valence electrons and group 2 elements have have 2.
SI unit of length - meters
Answer:
Because of the existence of isotopes.
Answer:
Explanation:
Given parameters:
Concentration of H₃O⁺ = 5.6 x 10⁻²M
Solution:
To solve for the concentration of H₃O⁺ in the solution, we simply use the expression below:
pH = -log₁₀[H₃O⁺]
where [H₃O⁺] = 5.6 x 10⁻²M is the concentration of H₃O⁺
pH = -log₁₀[5.6 x 10⁻²] = - x -1.25 = 1.25
