Put all chemicals down the drain. true or false?

How can you use chemical equations to predict the products of the reaction you can carry out?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h