You make the following measurements of an object: 42 kg and 22 m3. what would the object’s density be? show your work for credit and include final units

Drug abuse will not lead to physical and psychological dependence. true or false ?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false