The Mixing of Which Pair of Reactants Will Result in a Precipitation

question 14

Multiple Choice

The mixing of which pair of reactants will result in a precipitation reaction?

• A)Cu(NO₃)₂(aq)+ Na₂CO₃(aq)
• B)K₂SO₄(aq)+ Cu(NO₃)₂(aq)
• C)NaClO₄(aq)+ (NH₄)₂S(aq)
• D)NH₄Br(aq)+ NaI(aq)

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Definitions:

Activity Rate

The activity rate refers to a predetermined overhead rate used in activity-based costing to allocate costs to products or services based on specific activities.

Predetermined Overhead Rate

A rate calculated before the accounting period begins, used to assign overhead costs to products or job orders based on a relevant activity base such as machine hours or labor hours.

Direct Labor-Hours

The sum of all hours spent by workers who are directly engaged in manufacturing, used as a foundation for distributing labor expenses to products or services.

Traditional Costing

An accounting method that allocates manufacturing overhead costs to products based on volume-related measures, such as labor hours or machine hours.