Which of the following equations is balanced correctly?

i. 2 ag2o → 4 ag + o2

ii. cu + h2o → cuo + h2

iii. zn + hcl → zncl2 + h2

iv. 2 c4h10 + 13 o2 → 8 co2 + 10 h2o

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f

The diagram is represented of a part of a plant cell. identify the locations where proton concentration builds up during photosynthesis and cellular respiration