The reaction times for three trials of an experiment are 80.3, 80.2, and 80.5 seconds. Which average time is expressed using the correct number of significant figures?

A. 80.3

B. 80.33

C. 80

D. 80.333

What happens to the oxygen that is produced as a result of photosynethesis

What happened as the catalyst CuO was added to the thermal decomposition of potassium chlorate?

If a ball is positioned at 3 feet, and let go, will it return at the same exact height?

Belinda wrote the following phrase to describe the movement of particles in a state of matter. "Marbles glide past one another." Which state of matter did Belinda most likely describe? Gas Liquid Plasma Solid

Which electron configuration represents an excited state for potassium atom

Define "Homoglycan" and "Heteroglycan" and give an example of each

If you have 200 grams of iodine how many atoms do you have?

Sea salt is formed by natural evaporation of ocean water and contains 98% sodium chloride. The remaining 2% are natural minerals such as iron and sulfur. Consider a 84.7-g sample of sea salt.

Which element in group 15 is the strongest metallic character?

Can neptune sustain life?