Anyone here who is from Chicago ​

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

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