Magnesium Hydroxide or Milk of Magnesia
Mg(OH)2
Ionic bonds.... I think ._.
Electronegativity increases as you move from left to right across a period on the periodic table.
Answer:
D. 9.0x10²³ atoms
Explanation:
First we use <em>Avogadro's number</em> to <u>calculate how many molecules of Si₂H₆ are there in 0.75 mol</u>:
- 0.75 mol * 6.023x10²³ molecules/mol = 4.52x10²³ molecules
There are 2 Si atoms in one Si₂H₆ molecule, that means that in 4.52x10²³ Si₂H₆ molecules there will be:
- 2 * 4.52x10²³ = 9.03x10²³ Si atoms
Thus the answer is option D.
Somewhat of the same element, have same amount of protons but different number of neutrons. <span />
Answer:
it is true because there is west,south and etc