QUESTION 6 Which of the following gases contain hydrogen atoms? O NO, O Ar OH, O F. O Rn HCI CO, NH, NO Ne Xe CO O CH, SO, ON,O O HCN H,S O HF Kr O He

||| V What are the molecular and empirical chemical formulas of a compound made up of these molecules? H H H H | | —C—C—CO-H O ATOMS, IONS AND MOLECULES Understanding the difference between a molecular and empiric... esc H—Ö- H-Ö-c 1 HTCI I H molecular formula: empirical formula: Q Explanation 2 Check W -CIH Н 0 0 #3 E The lines stand for chemical bonds between the atoms. You can ignore the dots you'll learn about them later. C X > $ 4 R S Costa do 5 % 6 MacBook Pro T A 6 G I Y 7 2022 McGraw Hill LLC. All Rights Rese H You 8 U J

QUESTION 5 Which one of these compounds is an ionic compound? O a. N2 O b. CO2 O c. Na20 O d. CCI4

What other chemical would follow the +2/ -1 rule shown here? (Hint: look at the common charges of each of the elements, then make sure they balance properly.) O BeO2 O Na20 Srl2 O BażF