Element M Reacts with Oxygen to Form an Oxide with the Formula

question 93

Multiple Choice

Element M reacts with oxygen to form an oxide with the formula M₂O.When M₂O is dissolved in water,the resulting solution is basic.Element M could be ________.

• A)calcium
• B)bromine
• C)oxygen
• D)carbon
• E)nitrogen

---

Definitions:

Sample Increases

The process or act of enlarging the sample size in statistical experiments, aiming to make findings more reliable by reducing sampling error.

Level of Significance

A threshold used in statistical testing to determine whether to reject the null hypothesis, commonly denoted as alpha (α).

Confidence Coefficient

The probability level or percentage that measures the degree of certainty in a confidence interval.

α

Often represents the level of significance in statistical tests, marking the probability threshold below which the null hypothesis is rejected.