Answer:
A. Mg(OH)2
Explanation:
all oxides are insoluble except those of Group IA metals. most sulfides S2- are insoluble, with the exceptions of Group I, II (slightly soluble) metals and ammonium - NH4+
According to law of conservation of matter and energy, amount of both of them will remain same
Answer:
2.843 M
Explanation:
Molarity = moles / volume
<u>Milliliters to liters:</u>
500 mL <u>= .500 L</u>
<u>Grams to moles:</u>
MgO molar mass = 16.00 + 24.31 = 40.31 g/mol
57.3 g x 1 mol / 40.31 g = <u>1.421 mol</u>
<u>Molarity:</u>
1.421 mol / .500 L = 2.843 M
To the top. Common knowledge my dude. Heat always rises to the top.