Answer:
5 piece of ribbon
Explanation:
Because ther are a piece of ribbon is shade
Step 1 - Remembering the law of mass conservation
As stated by the law of mass conservation, in a chemical process no atoms can be created or destroyed. Consequently, the mass of the system will not change: the sum of the masses of reactants will be exactly equal the sum of the masses of products.
Step 2 - Using the law of mass conservation to understand the problem
The law of mass conservation therefore guarantees that, if we are mixing 7.2 g of C with 19.2 g of O, we will form 7.2+19.2 g of whatever is the product. Therefore we will form 26.4 g of product, which will be either CO or CO2.
Step 3 - Using mass percentage to find the correct product
Since we already know what will the mass of the product be, we can calculate the percentage of C in the product:
Now, let's calculate the percentage of C in both CO (28 g/mol) and CO2 (44 g/mol), remembering that the molar mass of C is 12 g/mol:
We can see that in CO2 the amount percent of C is exactly the same as we have calculated for the unknown product of this reaction. Therefore, the product is CO2.
Cool to know im not that interested, but cool to know
Answer:
alkalyene ch2+2n+h wbqlzl