Answer: 2-
Each electron has a 1- charge, so two additional electrons would add a 2- charge to the previously neutral atom.
Answer:D
Explanation:
Decomposers decompose food and return it to the environment through the soil
Answer: 0.335 mols Ca(NO3)2
Explanation: To go from grams to mols you divide grams by the molar mass of the substance so, 55/164.088 = 0.335