Answer: you cannot change the subscripts in a formula in order to balance a chemical equation because the subscripts indicate the number of each kind of atom in the formula,
Each compound has an invaraible chemical formula which tells how many atoms of every kind constitute the compound.
Varyng the subscripts is a modification of the chemical formula, meaning that you end up with a different compound.
On the other hand, by varying the coefficients, you only modifiy the number of unit formulas (number of molecules of the compound) that intervene in the reaction, which is what you want to indicate by balanceing reactants and products.
Answer:
6m
Explanation:
Answer:
Hey!
Your answer is element A
Explanation:
Using the graph, the element A's emission of radioactive particles ends approximately after 6 years...
A HALF-LIFE IS "HALF" OF THAT TIME PERIOD!
So if the radiation goes for 6 years the half-life is 6 divided by two which gives you 3 years!
The rest however have a longer half-life...
Because they all end at 14 yrs so their half-life in 7 years!
HOPE THIS HELPS!!
Two main food-making processes include cooking and fermentation. Cooking involves preparing and combining ingredients to create a dish, such as a pizza, whereas fermentation uses bacteria, yeast or mold to convert sugars to alcohol, gases or organic acids and is a key process in making bread, cheese, and wine.
There are numerous food-making processes, but two primary ones include cooking and fermentation.
For instance, when making pizza, the process involves inputs like ingredients, the efforts of the pizza maker, and tools and materials for cooking and serving. This process involves different stages such as preparing the dough, spreading the sauce, adding toppings, and baking the pizza in an oven.
Another prominent food making process is fermentation, which is highly involved in the production of foods and beverages. It uses bacteria, mold, or yeast to convert sugars to alcohol, gases, or organic acids. A familiar example of this process is alcohol fermentation, which produces ethanol and is used in making bread products and alcoholic beverages.
Learn more about Food-making Processes here:
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Answer:
27·92 %
Explanation:
Given chemical equation is
2C4H10 + 13O2 -----> 8CO2 + 10H2O
So according to the above balanced chemical equation for 2 moles of C4H10, 10 moles of water is produced
Molecular weight of C4H10 is 58 g
Molecular weight of water is 18 g
So for 116 g of C4H10, 180 g of water is produced and therefore for 1 g of C4H10 (180 ÷ 116) g of water is produced
∴ For 1 g of C4H10 1·552 g of water is produced
For 3000 g of C4H10, (3000 × 1·552) g of water is produced
∴ Number of grams of water produced for 3000 g of C4H10 is 4656 g
Percent yield =((experimental amount) ÷ (theoretical amount)) × 100
Here experimental amount is 4656 g
theoretical amount is 1300 g
∴ Percent yield = (1300 ÷ 4656) × 100 = 27·92 %
∴ Percent yield = 27·92 %