Answer:
b) low temperature and high pressure
Explanation:
Deviation of gases from their ideal behavior could be as a result of two things which include a very small volume for the gases and the collisions not being elastic enough.
Small volume will decrease the frequency of elastic collisions a gas will experience as a result of the tiny space.
Low temperature will decrease the amount of elastic collisions and energy of the gas and high pressure will decrease the volume which is why there will be a deviation in the ideal behavior of Hcl(g)
C because D stands for delta therefore it signifies change
Moles Ca(OH)2 = 12.9 /74.092 g/mol=0.174
<span>moles H3PO4 = 18.37/98.0 g/mol=0.187 </span>
<span>3 : 2 = x : 0.187 </span>
<span>x = moles Ca(OH)2 needed =0.281 </span>
<span>we have only 0.174 moles of calcium hydroxide so it is the limiting reactant </span>
<span>moles Ca3(PO4)2 = 0.174/3=0.0580 </span>
<span>mass = 0.0580 mol x 310.18 g/mol=18.0 g</span>
The neutral atom of lead must have 82 protons while ions can have b or less than 82.
The atomic number of an element is the number of protons in the nucleus of the element.
Also, for neutral atoms, the number of protons equals the number of electrons.
In ionic form, the number of protons/electrons of an atom may vary and be different from that of the neutral form.
Positive charges mean that the ion has less proton than its neutral version while negative charges mean that it has more electrons than its neutral version.
Thus, the neutral atom of lead will contain an equal number of protons as the electrons while its ionic form can have more or less than 82 protons.
More on atoms can be found here: brainly.com/question/803445?referrer=searchResults
