What is number is moles in 15 grams of nitrogen

In a reaction, chlorine accepts an electron to form Cl-. What is true about the atomic size of the chlorine ion?

Discuss how to separate a mixture of iron fillings, salt, sand, and wood chips.

Which types of heat transfer involve heat flow from hot objects to colder objects? A. convection, conduction, and radiation B. convection, but not conduction or radiation C. convection and conduction, but not radiation D.

In each following pairs, state which one is more likely to give up electrons? a) wood or human hair b) plastic wrap or steel c) cotton or silk

Mercury (Hg) poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes leading to irreversible inactivity of these enzymes. If the amount of mercury in a polluted lake is 0.

How many moles of al2o3 are formed when 0.78 mol o2 reacts with aluminum?

The dissociation of a weak electrolyte is suppressed when

There are seven major levels of classification. Kingdom and Phylum are just two of the levels. Which of the following are also major levels of classification? Choose all answers that are correct. A. Class B. Order C. Family D. Level

An experiment with high validity is

What is the smallest part of a tree that can do all the things needed for life?