Which process is an example of a chemical change? drying clothes in the dryer heating a cup of tea chopping a tree activating a glow stick

Which element is the least metallic between cadmium, silver, zinc, or iron?

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum