directions: answer the 3 questions about each chemical formula on the line provided. please type your answer…
directions: answer the 3 questions about each chemical formula on the line provided. please type your answer where it’s highlighted yellow.\nformula question 1 question 2 question 3\nfe₂cl₃ how many atoms of iron are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\npb₅cak₃al how many atoms of calcium are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\nc₆h₁₂o₆ how many atoms of oxygen are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\nno₂c₅brcl how many atoms of nitrogen are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\nch₃ba₆o how many atoms of barium are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\np₂nacl how many atoms of sodium are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\nmg₃li₃ne₃ how many atoms of lithium are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\nsiparca₁₂ how many atoms of silicon are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\ns₄o₄hcb how many atoms of sulfur are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?\nhb₂ocl₄ how many atoms of chlorine are there? how many atoms are in the chemical formula? how many elements are in the chemical formula?
Answer
Explanation:
Step1: Count specific - element atoms
For each formula, look at the sub - script next to the element symbol to find the number of atoms of that element. If there is no sub - script, it means 1 atom.
Step2: Count total atoms
Sum up the number of atoms of all elements in the formula.
Step3: Count number of elements
Count the distinct element symbols in the formula.
Answer:
| Formula | Question 1 | Question 2 | Question 3 |
|---|---|---|---|
| $Fe_2Cl_3$ | 2 | 5 | 2 |
| $Pb_5CaK_3Al$ | 1 | 10 | 4 |
| $C_6H_{12}O_6$ | 6 | 24 | 3 |
| $NO_2C_5BrCl$ | 1 | 9 | 5 |
| $CH_3Ba_6O$ | 6 | 10 | 4 |
| $P_2NaCl$ | 1 | 4 | 3 |
| $Mg_3Li_3Ne_3$ | 3 | 9 | 3 |
| $SiPCa_{12}Ar$ | 1 | 15 | 4 |
| $S_4O_4HCB$ | 4 | 7 | 4 |
| $HB_2OCl_4$ | 4 | 8 | 4 |