Examlex
What is the correct name for K2Cr2O7?
Percentiles
Statistical measures indicating the value below which a given percentage of observations in a group of observations falls.
Interquartile Range
A measure of variability, defined as the difference between the first and third quartiles, describing the middle 50% of a data set.
25th Percentile
A value below which 25% of the data falls.
75th Percentile
A value below which 75% of the data points in a dataset fall, used as a measure of dispersion.
Q7: Which is dinitrogen monoxide?<br>A)N<sub>2</sub>O<br>B)NO<sub>2</sub><br>C)NO<br>D)N<sub>2</sub>O<sub>4</sub>
Q13: A distinct substance composed of two or
Q63: In a reaction to produce chlorine gas,the
Q65: What is the total number of electrons
Q67: Which is not a diatomic gas?<br>A)F<sub>2</sub><br>B)N<sub>2</sub><br>C)I<sub>2</sub><br>D)Cl<sub>2</sub>
Q96: A neutralization reaction is a double-displacement reaction.
Q103: What is the percent by mass of
Q104: What is the mass of 0.360 moles
Q106: The most abundant element in the earth's
Q108: What mass of water at 10.0°C is