What is the molecular formula for butane?

Sensors detect the concentration of mercaptan molecules in natural gas at various distances from a leaking source. At which location will a sensor detect the highest concentration of mercaptan?

How can you get the knowledge of minerals chemical makeup or use? A. To determine how to break down minerals B. To determine the color of minerals C. To classify minerals D. To identify minerals

Lily replicates an experiment that found that the number of calories in a particular food is 50 kcal. She obtained data from five trials: 50 kcal 72 kcal, 50 kcal, 12 kcal, and 50 kcal. Which best desribes her data results? A. accurate B.

What do melted ice cooling lava and boiling water have in common?

A tube of air contains a feather and a coin. both objects are dropped at the same time. the coin falls faster than the feather. However when air is removed from the tube to create a vacuum, both the feather and the coin reach at the same time.

What are two examples of decomposers

An unknown substance dissolves in water but it does not conduct electricity before or after it has dissolved.

21% of oxygen in air with barometric pressure of 625. what's partial pressure

Which situations will NOT increase the reactions rate of most chemical reactions A) an increase in temperature B) grind up the solute to increase surface area before mixing C) by increasing the pressure in which the reaction takes place D)

What are the three types of matter?