Based on the Activity Series,which Metal Dissolves in Hydrochloric Acid

question 139

Multiple Choice

Based on the activity series,which metal dissolves in hydrochloric acid to produce hydrogen gas?

• A)Ag
• B)Au
• C)Co
• D)Cu

---

Definitions:

Null Hypothesis

The theory suggesting that any noted discrepancies between certain groups are merely the result of sampling or experimental inaccuracies, asserting no substantial variance exists.

Sample Size

Refers to the number of observations or data points collected from a population for the purpose of statistical analysis, influencing the accuracy of the results.

Pooled Proportion

A method used to combine the proportions from different groups in statistical analysis to obtain a common proportion.

Test Statistic

A value calculated from sample data during a hypothesis test that is used to decide whether to reject the null hypothesis.