Part A: Identify the following parts of each chemical formula by circling the subscripts and drawing a square around the coefficients.
H2 2 HCl 4 O2 CH4 3 CO3 2 NaOH
Part B: List the symbols for the atoms in each formula and give the number of each. C2H6 2MgO 4P4O10
NH3 3 Al(OH)3 2 H2O2
Part C: Balance each of the following equations following the procedure described in class. Be sure to show your work.
P + O2 → P4O10 Mg + O2 → MgO
P = P = Mg = Mg = O = O = O = O =
HgO → Hg + O2 Al2O3 → Al + O2
Hg = Hg = Al = Al = O = O = O = O =
BaCl2 + H2SO4 → BaSO4 + HCl
Ba = Ba =
Cl = Cl =
H = H =
S = S =
O = O =
Answers: 3
Chemistry, 22.06.2019 10:40, justicejesusfreak
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
Answers: 1
Chemistry, 23.06.2019 05:40, Queenquestion9130
Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
Answers: 1
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