<span>The law of proportion states that elements combine in whole number ratios. The gram readings for K are multiples of each other, both in grams and moles.
Let us compare the ratios:
</span>2.44 grams/1.22 grams = 2
<span>4.89 grams/2.44 grams = 2</span>
<span>Therefore, Potassium always combines with Oxygen in a ratio of 2 is to 1.</span>
<span>F can only have oxidation number of -1
The overall compound has an oxidation number of -1
You have 6 Fs, so 6(-1) = -6
charge from F
X = oxidation number of P
x + (-6) = -1
solve for
x = +5</span>
Thermoplastics and thermosetting polymers Examples include: polyethylene (PS) and polyvinyl choline (PVC). Common thermoplastics range from 20,000 to 50,000 amu, while thermosets are assumed to have infinite molecular weight.
Answer:
chromium:oxygen=1:2
Explanation:
total mass=2.16g
mass of chromium=1.34g
mass of oxygen=2.16g-1.34g=0.82g
chromium oxygen
mass:1.34g 0.82
RAM:52 16
divide the mass with the RAM
0.02577 0.05125
divide by smallest number to find ratio
1 2
ratio of chromium to oxygen=1:2
Answer:
B. An organized way to test scientific ideas.
