You should never heat chemicals in a closed system (closed bottle or flask) because

What does the state symbol aq mean when written after a chemical compound in a chemical equation?

True or False: When a child has reached about the age of ten, their brains begin to reduce some of the connections between brain cells.

The number of grams of H2 in 1470 mL of H2 gas.

Why is it harder to measure the temperature of a solid than a liquid?

In cars, ethylene glycol, C2H6O2, is used as a coolant and antifreeze. A mechanic fills a radiator with 7.1 kg of ethylene glycol and 1.2 kg of water. What is the molar mass of ethylene glycol? What is the molality of the water in the solution?

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.

A chemist must prepare of aqueous potassium permanganate working solution. He'll do this by pouring out some aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water.

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?