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

True

False

Tate the law of conservation of mass. Then apply the law to this question: What would be the total mass of the products of a reaction in which 10 grams of water decomposes into the elements hydrogen and oxygen

True or false energy has no mass and takes up no space

A 01.0kg baseball is hit through a neighbors window. just before it hits the window, the ball has a kinetic energy of 200j. what was the balls velocity just before it hit the window?

What are two ways in which fungi are beneficial? How can fungi be dangerous?

How are bases named? A. like monatomic elements B. like polyatomic ions C. like ionic compounds D. like molecular compounds

Which mixture can be separated by using the equipment shown below?

El agua de Mar es una mezcla homogenea o disolucion Y El agua corriente Y El aire Y LA lejia Y Los refrescos con gas Y El suero fisiologico Y Las monedas Y LA leche Y LA gelatina Y Los productos de higiene Y El merengue

The component which dissolves in a solution is called the ...

If this fossil is 65 million years old, what could this fossil suggest about organisms alive today? A. If it is similar to any two modern species, it could be a common ancestor of these species. B.

A compound composed of electrically chargerd atoms is called?