A, B, and C represent elements. In order from left to right, what are the coefficients (front numbers) needed to balance the following equation? AB4 +
C2 --> AC2 + B2C *
A) 1,2,1,2
B) 1,4, 2,4
C) 1, 2, 2, 1
D) 1,1,3,1

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Which characteristics can be used to differentiate star systems? check all that apply.

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?