Which of the following is a balanced chemical equation? mgf 2 + li 2co 3 ⟶ mgco 3 + lif 2al + 6hcl ⟶ 3h 2 + alcl 3 p 4 + 3o 2 ⟶ 2p 2o 3 ch 4 + 2o 2 ⟶ co 2 + h

Which of the following is a homogenous mixture? o a. a toy box filled with toys o b. blood o c. trail mix o d. spaghetti and meatballs submit

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.