In a calorimetry lab, sodium oxide is combined with water. Compute the heat released in the formation of 1.99 grams of sodium hydroxide. Na2O +
H20 -> 2NaOH + 215. 76 kJ

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

What are transitions between a liquid and a solid called? identify which way they are transitioning

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle