Module 1 Step 1: Practice Your Learning Calculating Reaction Rate
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1.
Given the reaction:
Mg(s)
+
2HCl(aq)
-
H2(g)
+
MgCl2(aq)
Reactant
HCI
НСІ
Concentration
0.40 M
0.20 M
Time
1.6 s
17.0 s
Calculate the rate of reaction.

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5