Answer:
1.3 M
Explanation:
The formula mass of lithium fluoride is 7+19=26 g/mol. This means that in 52 grams of LiF, there is 2 moles.
Molarity = (moles of solute)/(liters of solution), so the answer is 2/1.5 = <u>1</u><u>.</u><u>3</u><u> </u><u>M</u>
Answer:
The bigger the amplitude is, the louder and more intense the sound.
Magnesium reacts with oxygen present in air to produce magnesium oxide;
2 Mg + O₂ → 2 MgO
This reaction doesn't start on its own but requires a initiation energy called activation energy. When provided with this activation energy with the help of Bunsen burner it will start a spontaneous reaction because the further energy required for reaction is generated by itself.