On what basis do we distinguish between substances and separate them from one another?

The activation energy of an endothermic reaction must be greater than the required ΔH. True False

What is a product made from nonrenewable resources? a shirt made from natural plant fibers a bookshelf made from wood a nail made from the metal iron a paintbrush made from horse hair

For an atom to be electrically neutral the number

How does an atom become a positively charged ion?

How to remove a musty smell from a wool coat?

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.