Ca(OH)2 + Na2SO4 ⟶
⟶
2CaSO4 + 2NaOH

How many grams of calcium sulfate should be produced from 215.0 grams of calcium hydroxide?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.