Chemistry S.3.3 Flashcards
1
Q
Which of these elements have the same number of valence electrons and similar chemical properties as strontium (Sr)? Use the periodic table to help you answer the question.
A. Magnesium (Mg)
B. Rubidium (Rb)
C. Oxygen (O)
D. Neon (Ne)
A
2
Q
Which of the following substances are ionic compounds? (Select all that apply)
A. H20
B. CO2
C. NH3
D. KCl
E. NaCl
A
3
Q
Which of the following sets of coefficients balances the following chemical reaction?
___N2 + ___H2 –> ___NH3
A. 1,3,2
B. 1,1,1
C. 2,3,1
D. 3,2,1
A
4
Q
How many oxygen atoms are present on each side of the following reaction?
2C2H18 + 25O2 –> 16CO2 + 18H2O
A. 25
B. 34
C. 50
D. 32
A
5
Q
In the reaction 2AgCl –> 2Ag + Cl2, assuming you started with 4 moles of AgCl, how many moles of Ag could be produced?
A
