2K + MgBr2→ __2_KBr +
Mg
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If 79.01 grams of Mg are produced, how many moles of K were reacted?
O 6.6 moles K
O 1.6 mol K
O 39.5 mol K
O 3.3 mol K

An experimental procedure requires a 10 ml of acid to be dissolved

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device