The chemical reaction shown above takes place in a closed system. What is true about the system while the reaction occurs?
A.
The total mass of the particles in the system increases
B.
The total number of particles in the system decreases.
s
narticles in the system
C.
The total number of particles in the system increases
D.
The total mass of the particles in the system stays the same

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1