The reaction of element X (--) with element Y (O) is represented in the following diagram:
o
O
Which equation properly describes the reaction between X
and Y?
A. 3X + 8Y X3Yg
B. 3X + 6Y → X3Y6
C. X + 2Y - XY2
D. 3X + 8Y - 3XY2 + 2Y

How many atoms of oxygen are contained in 160 grams of n2o3

Asample of silver (with work function ? = 4.52 ev) is exposed to an ultraviolet light source (? = 200 nm), which results in the ejection of photoelectrons. what changes will be observed if: silver is replaced with copper (? = 5.10 ev) more photoelectrons ejected no photoelectrons are emitted fewer photoelectrons ejected more energetic photoelectrons (on average) less energetic photoelectrons (on average)

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?