Which is the best explanation of how catalysts are used in chemical reactions? A. Catalysts are need for every chemical reaction to get started

B. Each catalysts can only be used once we are given the chemical equation

C. Catalysts lower the activation energy for chemical reaction to start

D. Each catalysts see I can find with a few different substrates to get chemical reactions to started faster

Be in this im starting a with you so if you want you can get a partner for this. but basically im going to assign you guys a biome and you have to have a big sheet paper and you will turn it into 4 squares. the top right square is will be a drawing square for a drawing you will make of your biome. the top left square is about the biomes plants and drawings of them. the bottom left square is about the biomes animals. the bottem rights square is about the description of the biome. leave a comment or an answer and i will assign biomes. if your request one thats the one you get. send me a link to the project and i will grade ! im not a teacher btw.

In the water cycle , when does water undergo a chemical change

If your blood becomes too concentrated with iona, what will happen to the red blood cells