Explanation:
To out this fraction in its simplest form, you need to multiply the 8 by the 1 and then add the 1 in the numerator.
You end up getting
Answer:
Your answer to #2 is <span>There are several differences between a </span>physical<span> and chemical </span>change in matter<span> or substances. A </span>physical change<span> in a substance doesn't </span>change<span> what the substance is. In a chemical </span>change<span> where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed. </span>
Answer:
The answer to the first question is B) left and the answer to the second question is A) right.
Explanation:
To solve these questions, we must remember that if a change is made to the system, the system will work to reduce that change. In these problems, if we add one reactant/product, the system will shift to use this compound and re-establish equilibrium.
For the first question, H2 is a product. If we add H2 to the system, the equilibrium will shift to the left to decrease the concentration of H2. The second question is the opposite since we are adding CH4 (a reactant). When CH4 is added, the system shifts to the right to decrease the concentration of CH4.
For more information about this principle, check out these other questions:
brainly.com/question/2943338
brainly.com/question/3384381
Answer:
A. to determine the efficiency of the reaction
Explanation:
- Percentage is the ratio of the actual yield to theoretical yield as a percentage. It is calculated by dividing the actual yield by theoretical yield then multiplying by 100%.
- Calculation of percentage yield is important as it helps in the determination of efficiency of a reaction. For example in most industries for the purpose of making the most product with the least waste.
- Additionally, calculating the percentage yield helps in determining other products that may be formed during the reactions.
Answer:
answer is 2 I think I'm correct sorry if I'm not
