The reaction is:
2 KClO3(s) → 3 O2(g) + 2 KCl(s) <span>
<span>A catalyst simply lowers the activation energy so MnO2 is not
part of the overall reaction.
By stoichiometry:
<span>3.45 g KClO3 x 1 mol/ 122.55g KClO3 x 3 mol O2/ 2 mol KClO3 x
31.99g/ 1 mol O2 = 331.096/ 245.1 = 1.35 grams O2 produced
Answer:1.35 grams O2</span></span></span>
Answer:
E
Explanation:
burning a substance changes it chemically.
Answer:
A.
Liquid
B.
Gas
C.
Gas
D.
Solid
E.
Liquid.
Explanation:
Solids have definite shape and volume and vibrate around a fixed position. Its relative intermolecular forces are very strong which holds its particles in a fixed position.
Liquids takes the shape of the container, that is no definite shape, has fixed volume and its particles move freely but are still attached to each other due to its mildly strong intermolecular forces.
Gases has no shape nor volume but it is highly compressible while its particles move freely in random paths.
