If 3.2 L of 0.55 M silver nitrate reacts with excess potassium chromate, what mass of the precipitate will form? 2 AgNO​3(aq)​ + K​2C​ rO​4(aq)​ Ag​2C​ rO​4(s)​ + 2 KNO​3(aq)

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons, neutrons, electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

Can someone me with questions 12 and 13 plz.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.