1) How many atoms are in H2O (Water) a) 2 atoms b) 3 atoms c) 5 atoms d) 10 atoms 2) How many atoms are in C2H6 (Ethane) a) 2 atoms b) 8 atoms c) 6 atoms d) 12 atoms 3) How many atoms are in CH4 (Methane) a) 4 atoms b) 8 atoms c) 6 atoms d) 5 atoms 4) How many atoms in: O2 a) 1 atom b) 3 atoms c) 2 atoms d) 4 atoms 5) How many atoms in: C6H12O6 a) 6 atoms b) 12 atoms c) 24 atoms d) 30 atoms 6) How many atoms in: N2  a) 1 atom b) 2 atoms c) 3 atoms d) 5 atoms 7) How many sulfur atoms in: 2 H2SO4  a) 1 atom b) 2 atoms c) 4 atoms d) 3 atoms 8) How many hydrogen atoms in: 3 H2SO4  a) 1 atoms b) 7 atoms c) 3 atoms d) 21 atoms e) 2 atoms f) 6 atoms 9) How many hydrogen atoms in: 3 NH3  a) 9 atoms b) 12 atoms c) 3 atoms d) 1 atoms 10) How many oxygen atoms in : C2H5OH a) 9 atoms b) 1 atoms c) 5 atoms d) 2 atoms 11) How many atoms in: HCl a) 1 atom b) 2 atoms c) 3 atoms d) 4 atoms 12) How many elements in: CaCO3 a) 1  b) 2 c) 5 d) 4 e) 3 f) it's unknown 13) How many molecules in: 3 Al(OH)3 a) 5  b) 3 c) 15 d) 21 14) How many atoms in: 2 Mg(OH)2 a) 2 atoms b) 6 atoms c) 5 atoms d) 10 atoms 15) The number "4" in NH4Cl a) is a coefficient b) indicates how many molecules there are c) is a subscript d) indicates that there are 4 chlorine atoms 16) 4 Fe + 3 O2 ➡ 2 Fe2O3  a) is an unbalanced equation b) is a balanced equation c) does not support the Law of Conservation of Matter d) contains 3 different elements 17) Li2O ➡ 4 Li + O2 a) is a balanced equation b) contains 3 elements c) does not support the Law of Conservation of Matter d) contains 2 oxygen atoms in the reactants 18) MgCO3 ➡ MgO + CO2 a) does not support the Law of Conservation of Matter b) does not have any reactants c) contains 4 elements d) is a balanced equation 19) How many hydrogen atoms are found in the products of: 2 Na + 2 H20 ➡ 2 NaOH + H2 a) 2 atoms b) 4 atoms c) 3 atoms d) 5 atoms e) 1 atom f) 6 atoms 20) According to the 'Law of Conservation of Matter', matter cannot _________ but it can __________. a) be destroyed; disappear b) change shape; be destroyed c) be created or destroyed; transform d) be destroyed; be created

Counting Atoms

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?