<span>a) molecular, phosphorous pentafluoride
b) ionic, sodium iodide
c) molecular, sulfur dichloride
d) ionic, calcium nitrate
e) ionic, iron(III) chloride
f) ionic?, lanthanum phosphate
g) ionic, cobalt(II) carbonate
h) molecular, dinitrogen tetraoxide
hope this helps!</span><span>
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Answer:
The different ways to represent compounds are chemical formulas and molecular models. There are so many ways to represent compounds so that a particular formula can be used depending upon how much information is provided and how much is needed to be share.
Explanation:
Hi! I calculated that the mols should be around 2.99 so rounded up the answer should be 3.
Isotopes are atoms of the same elements with same number of protons and electrons but different number of neutrons.
the isotope we are asked to find has 71 protons and 71 neutrons. the atomic number is the number of protons. Atomic number is characteristic to that element. Since isotopes are of the same element then the number of protons determines what the element is, element with atomic number 71 is Lutetium - Lu.
then the mass number is sum of protons and neutrons. In Lu isotope - mass number is 71 + 104 = 175 is the mass number
therefore answer for the isotope is -1) ¹⁷⁵Lu