<span>The correct answer is A. An electrolyte is a substance that conducts
electricity in solution because the solution has ions that electricity can flow. KNO3 and H2SO4 dissociates into potassium, nitrate, hydronium and sulfate ions when in solution therefore they are considered as electrolytes.</span>
Answer:
The example of reflection of light is surface of smooth pool of water and the example of reflection of sound is echo.
D) The organism was able to transport water through specialized veins
The classification of it being a metal, nonmetal, or metalliod will be useful in the process of elimination to determine what it is. Then for the second test, meauring the atomin radius will narrow it down quicker to the mystery elemet's name.
Since you determined what part of the periodic table it's on, then when measuring the atomic radius, you should be able to pinpoint what the element is more surely.
Answer:
The answer to your question is
a) 212.7 g
b) 110 g
Explanation:
a) Mass of three moles of Chlorine
Atomic weight of Chlorine = 35.45 g but chlorine is a diatomic molecule then the atomic weight = 2(35.45) g = 70.9 g
70.9 g of Cl₂ --------------- 1 mol
x --------------- 3 moles
x = 3(70.9)/1
x = 212.7 g
b) mass of one mole of K₂S
Molecular mass = (39 x 2) + (32 x 1)
= 78 + 32
= 110 g
110 g of K₂S ---------------- 1 mol