The table compares some characteristics of two atoms. Charged Particles Atom Number of Neutrons Mass Number X 10 19 Y 8 16 Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms.

Alarge marble is dropped in a graduated cylinder with 35ml of water in it. the water level increases to 49ml. what is the volume of the marble

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)