You need to show how the time it takes for a rat to finish a maze changes in different age groups. What chart or graph should you use?
O Line Graph
Bar Chart
O Pie Chart
O Histogram
O Scatter Plot
I would give

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?

How many grams of phosphorus are contained in 5.09 moles of phosphorus?

The lab procedure involves several factors, listed below some were variable and some were constant. label each factor below v for variable ot c for constant