Question 9 of 10 2 Points
What is an ion?
A. An atom that has lost or gained 1 or more electrons
B. An atom that has lost or gained 1 or more protons
O c. An atom that differs in mass from another atom of the same
element
D. An atom that has lost or gained 1 or more neutrons

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.