The table shows the number of atoms of different elements that make up molecules of four compounds. Which compound has the chemical formula C₄H₄N₂O₂

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted