How Might You Tell Whether or Not Your Toothpaste Contained $\mathrm { O } _ { 3 }$

question 64

Multiple Choice

How might you tell whether or not your toothpaste contained either calcium carbonate,CaC $\mathrm { O } _ { 3 }$ ,or baking soda,NaHC $\mathrm { O } _ { 3 }$ ,without looking at the ingredients label?

• A)if the toothpaste bubbles when heated
• B)if the toothpaste bubbles when added to ammonia,such as window cleaner
• C)if the toothpaste produces a salt (NaCl)when added to HCl
• D)if the toothpaste bubbles when added to vinegar

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Definitions:

P = ATC

P = ATC denotes the point where the price is equal to the average total cost, indicating a break-even point for a firm in the short run.

Level of Output

The quantity of goods or services produced by a business within a certain period.

Marginal Revenue

The increase in revenue that results from the sale of one additional unit of a product.

Output

The total amount of goods or services produced by a company, industry, or economy within a specific period.