Answer is: <span>an atomic radius.
</span>The atomic radius<span> of a </span>chemical element<span> is a measure of the size of its atom.
</span>The atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.
The atomic radius decreases across the periods because an increasing number of protons, because <span>greater attraction between the protons and electrons.</span>
Jupiter and Saturn has ammonia clouds in its atmosphere since the molecules of ammonia gas that are present in their atmospheres condense to form clouds. However, these ammonia clouds are more visible in Jupiter than in Saturn because of their lower altitude in Saturn.
Since the orbital speeds are slower for planets with larger orbits, we can arrange the planets by their orbital speeds from the slowest to the fastest: Saturn<Jupiter<Mars<Mercury
Answer:
b. SF₆
Explanation:
Graham's law states that the rate of diffusion of a gas is inversely proportional to the square root of its molecular mass,
As molecular mass of O₂ is 32g/mol, the diffusion is equal to (Assuming constant of proportionality of 1):
1/√32 = 0,1768.
As this diffusion is 2,14 times faster than diffusion of the unknown gas, diffusion of the unknown gas is:
0,1768/2,14 = 0,0826
Know, this diffusion times √molec. mass of the unknown gas must be 1.
That is:
0,0826 = 1/√molec. mass
0,0826√molec. mass = 1
√molec. mass = 12,1
molecular mass of the unknown gas is: 12,1² = <em>146g/mol</em>
Cl₂ has a molecular mass of 70,9 g/mol; SF₆ of <em>146g/mol</em>; kr of 83,8g/mol; UF₆ of 352 g/mol and Xe of 131,3
That means the uknown gas is:
b. SF₆
I hope it helps!
A physical change is when there is an alteration to the material but does not affect at the molecular level. An example of a physical change would be cutting, crushing, freezing, and boiling a material object.
Answer:
C. The blood would contain nutrients absorbed from the food.
Explanation:
The only option that makes sense is C. The blood would contain nutrients absorbed from the food. Since blood does take nutrients such as vitamins.
