There are 3 Barium, 2 Phosphorus and 8 Oxygen in Barium Phosphate (Ba3(PO4)2, making 13 units. Multiply 0.0350 mol given by 13 and then you get 0.455 mol. Since they want atoms, multiply 0.455 by Avogadro's number (0.455 x 6.023 x 1023) and you get 2.74 atoms of barium phosphate.
Yes because she is holding the weight of the box.
Answer:
D
Explanation:
The electrons revolve around the nucleus and they contain negative charge
A science conclusion should simply have a statement identifying whether your experiment’s aim turned out to be true or false