Mean, median and mode are best described as which? A. Qualitative and quantitative data
B. Measures of central tendency
C. Discrete and continuous data
D. Histogram, scatterplot and circle

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false