Which hand is negatively changed?

A.
B.
C.
D.

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

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