Carbon dioxide it should be water oxygen
Group 1 and group 7 of element group consists of alkali metal, which are generally combined with other elements in nature, so they have properties of compound
Answer:
C) 
Explanation:
pH is defined as the negative logarithm of the concentration of hydrogen ions.
Thus,
pH = - log [H⁺]
The expression of the pH of the calculation of weak acid is:-
Where, C is the concentration = 0.5 M
Given, pH = 2.94
Moles = 0.100 moles
Volume = 1.00 L
So, 
C = 0.100 M
An electron in a hydrogen atom would have 10 states for a 3d orbital, like any other element.
n = 3, l = 2, in one of ml = 2, 1, 0, -1, -2 each with ms = -½ or +½ or a total of 10 possible states.
None of these are a ground state of an electron in the hydrogen atom.
Enjoy :)
Answer:
240g
Explanation:
Using the equation m=pV, where m=mass, p=density, and V=Volume
m=(6)(40)=240
m=240
