Changes in activation energy during a chemical reaction are represented by a

Why nichrome wire is used as heating element?

Which of these is a chemical change a / fire works eploding b/grinding powder c/iorning shirt

Most of the sulfur used in the United States is chemically synthesized from hydrogen sulfide gas recovered from natural gas wells.

Which element is a liquid at STP? (1) bromine (3) francium (2) cesium (4) iodine

What elements form ions with a charge of - 1?

A cube of iron has a temperature of 35°C. It is placed on top of a hot surface with a temperature of 175°C. What will happen to the iron? A) Its temperature will decrease. B) Heat will flow from the hot surface into the iron.

Density differences cause the

Why can't you balance a chemical equation by changing the subscript?

Which level of organization is best represented by the corn plant? tissue, the highest level of organization organ, the lowest level of organization organism, the level of organization directly above organ system organ system, the level of

What is one product of a condensation reaction between two amino acids, such as glycine and alanine?