Alarge crystal of potassium manganate was placed to the bottom of a beaker of cold water and left for several hours.
(a) describe what would be seen after few minutes and after several hours.
(b) explain your answer using the idea of particles

(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.

4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?

How does science use models to gain a better understanding of concepts?