What is empirical and moleculer formula?.

How can scientists know the impact of prairie dogs on an ecosystem?

Where do the noble metals tend to be located on the table

Five calcite, CaCO3 (MM 100.085 g/mol), samples of equal mass have a total mass of 12.2±0.1 g. What is the average mass and absolute uncertainty of calcium in each sample?

What kind of bonding is found in Fe2O3?

Chemicals used for controlling insects and weeds could reduce soil fertility by:

Many sponges can reproduce asexually. Ladybugs, on the other hand, reproduce sexually. When small bits of a sponge are broken off-often by currents or by predators--they can float to new regions and regenerate as new sponges.

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g C2H2?

A racing car travels 340 miles in 120 minutes. what speed is traveling at?

What is the pH of 0.4125 at 25 degrees Celsius

Which reaction did you perform in the hands-on activity? based on your observations, was the reaction endothermic or exothermic? explain your answer in complete sentences?