Answer : true
explanation:
Explanation:
No. Different acids have different strengths . The amount of dissociation to H+ concentration , for the same concentration a strong acids would have a lower pH ( H+ concentration ) and a weak acid would have a higher pH ( lower H+ concentration )
Answer:
Covalent
Explanation:
Titanium and its first-nearest boron atoms form a strong covalent bond, so TiB2 has high melting point, hardness and chemical stability. Titanium atom releases two electrons to form Ti 2 + ions, and a boron atom gets one electron to come into B- ion
Answer:
The correct answer is option C.
Explanation:
r = resultant vector
y = vertical component of vector
x = horizontal component of vector
We have :
The vertical component of a vector is 40 N and its horizontal component is 25 N.
x = 25 N
y = 40 N
47.2 N is the magnitude of the vector.
I think Magnesium not sure because the relative atomic mass of magnesium is 24,31.