2. Identity the type of reaction and balance the equation, including the states of matter, for the following reactions:
A. (5 Points) aqueous aluminum nitrate is added to solid calcium
Type of Reaction:
B. (5 Points) aqueous barium chloride is added to aqueous potassium sulfate
Type of Reaction:
C. (5 Points) solid magnesium oxide is heated
Type of Reaction:
D. (5 Points) solid zinc is added to oxygen gas
Type of Reaction:

How much energy moves onto the next level, in an energy pyramid

Jessica is traveling from miami, florida, to chicago, illinois. using the map, tell one way the land will change during the second half of her trip.

Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)