Question 1 Compound Y is thermally decomposed with carbon using the apparatus below.
Reaction tube
Compound Y
and carbon
1
Heat
Limewater
A brown solid is formed in the reaction tube and the limewater turns cloudy.
What is compound Y?
А
Copper (11) oxide
B
Calcium oxide
с
Magnesium oxide
D
Sodium oxide

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?