What Is Characteristic of Physical and Chemical Reactions

question 43

Multiple Choice

What is characteristic of physical and chemical reactions? 

• A) They involve changes in energy, but not in matter. 
• B) They involve changes in matter, but not energy. 
• C) They always require energy. 
• D) They sometimes emit energy.

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Definitions:

Total Variable Cost

The sum of all costs that vary with the level of production or sales, such as materials and direct labor.

Direct Costs

Expenses that can be directly traced to a specific cost object, such as a product, department, or project.

Incremental Manufacturing Cost

The additional cost incurred to produce one additional unit of product, including materials, labor, and overhead costs.

Production Increase

An upward adjustment or rise in the amount of goods and services produced by a company.