Activity In this activity, you'll use a simulation to learn about chemical reactions between atoms and molecules. Get started by
following these steps:
1. Go to the simulation Balancing Chemical Equations e.
2. Click the simulation and select the introduction. Balance the three equations using the balance scale and graph tools.
3. When you've finished all three equations, go to the game and select level 2. Complete all five challenges.
Now use what you learned from the simulation to answer the following questions.
Part A
Based on your experience in the simulation, what do the numbers 3 and 4 refer to in 3NH4?

it has one origin of replication, but it proceeds in two directions - d)

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

what are the awnser choices? i mean, without choices, it is an incompleat