Hi there!
D is true
the number of protons is same as atomic number in an atom
good luck!
One electron is shared between ethane, H3-C-C-H3
A. The pH indicates how acidic or basic a
solution is.
The Answer is no. hope this help c:
There are 5.43 x 10²³ present in 187 grams of XeF₄
<h3>Further explanation </h3>
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass

mass of XeF₄ = 187 g
mol XeF₄ (MW=207,2836 g/mol) :

Number of molecules :
