Answer:
The statement which best explains the change that must happen at the molecular level is below:
Explanation:
The molecules move more slowly and their average kinetic energy decreases
From the balanced chemical equation,
4Fe + 3O₂ --> 2Fe₂O₃
it is evident that for every 4 moles of Fe (iron), 2 moles of iron (III) oxide will be formed. Using the same ratio,
8 moles of iron x (2 moles Fe₂O₃ / 4 moles of Fe)
= 4 moles Fe₂O₃
Therefore, the answer is 4 moles.
80.5%- The total mass of the compound is 18g (14.5 + 3.5) then divide the mass of magnesium by the total. easy way to remember is- (part/whole) x 100
First, we have to know that the supply chain's stages include first, the customers and he is the main controller of the supply chain. Then, retailers, distributors (who fill the stock of the retailers and at the end the manufacturer's companies.
So when the customer starts to buy the product this represents the final stage of delivering the product to the end of the supply chain and the beginning of collecting information regarding the customer purchase.
When the customer purchases the product, the money and the information will move towards the retailer.
The retailer requests a new order to fill his stock again from the distributor and that makes money and information move towards the distributor.
The distributor requests a new order from the manufacturer's companies so, the money and the information move towards the manufacturer's companies and shipping companies.
So the Customer's purchase is the most powerful stage in the supply chain.
9.0x10^5 = 900,000
850,000 - 900,000 = -50,000
-50,000 = -5.0x10^4 = Answer
