Did you observe any evidence that atoms are destroyed as a substance burns when mixing hydrogen (H2) and oxygen (O2)? Explain your answer using observations from the Sim.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

When the mercury level in a barometer decreases that atmospheric pressure has