some substances are not composed of molecules. instead, these substances are composed of atoms arranged in a…

some substances are not composed of molecules. instead, these substances are composed of atoms arranged in a crystal structure, or repeating pattern. models that represent these substances show this repeating pattern of atoms.\nthe chemical formula for a substance with a crystal structure shows two things. it shows which chemical elements the substance is composed of. it also shows the ratio, or relative amounts, of the chemical elements in the substance. for example, the chemical formula for beryllium fluoride, bef₂, shows that there is one beryllium atom for every two fluorine atoms.\nselect the model that represents the substance with the chemical formula fes₂.\nb n s fe ga as\npyrite boron nitride gallium arsenide
Answer
Explanation:
Step1: Identify elements in formula
The formula FeS₂ has iron (Fe) and sulfur (S) elements.
Step2: Match with models
The pyrite model has blue (Fe) and yellow (S) atoms which match Fe and S in the formula. The boron - nitride model has B and N, and the gallium - arsenide model has Ga and As which do not match FeS₂.
Answer:
pyrite