Different kind of London are used in eyeglasses to help people with eye conditions

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

Movement that is like a t a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. transfers energy from one location to another a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?