2)What is conserved in the reaction shown below? H2(g) + Cl2(g) → 2HCl(g)
A)only mass
B)only mass and moles
C)only mass, moles, and molecules
D)only mass, moles, molecules and volume
E)atoms and mass

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What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of