a particular vitamin’s chemical formula has one cobalt atom. what is the molar mass of the vitamin if it contains 4.34% cobalt?

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?

The boiling point of liquids is very high what does it indicate

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?