The first one is the answer
isotopes of an atom have different number of neutrons . the number of protons are not different in isotopes of an atom
<span>A) elements and compounds.
Compounds are two combined elements.</span>
<span>The "exosphere" is the most distant and tenuous "layer" of our atmosphere.</span>
In 1 mol of CH3OH, you have 4 H-atoms (because 3 H-atoms
are attached to the C-atom, and one H-atom in the OH group). That means
in 0.500 mol of CH3OH, you have 2 H-atoms since it is halved. And then we have Avogadro's constant: 6.02 * 1023.
The question asks for how many hydrogen atoms there are in 0.500 mol CH3OH. Using the numbers that we have (Avogadro's constant and no. of H-atoms), the answer of the question will be something like:
<span>H-atoms in CH3OH = 2 * 6.02 * </span>1023<span> = ~1.2 * 10</span>24
Somewhat false
observations can be made of a model of the statue of liberty, say, or in real line
