1) A sample of gas occupies 6.80 L at 600. K. Calculate the new volume at 300. K.

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.