Answer:
Explanation:
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:
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Explanation:
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<em>Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.</em>
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So that they combine smoothly and you aren't left with separated looking salad dressing. With polarity only, like-polarities dissolve like-polarities. So you must make sure that all your ingredients are polar or all are nonpolar.
Single Replacement & Decomposition
<h3>Further explanation</h3>
Given
Two chemical reactions
1. Cl2 + 2NaBr ⇒2NaCl + Br2
2. 2NaCl ⇒2Na + Cl2
Required
Type of reaction
Solution
Equation 1 : A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds
General formula :
A + BC ⇒ AC + B
Equation 2 : the decomposition reaction of a compound into its constituent elements or compounds
General formula :
AB ⇒ A + B
Answer: Copper (I)
Explanation:
The number of protons in an atom directly correlates to the identity of the atom, so this ion is copper. The charge relates to the balance of protons and electrons, so this ion has one more proton than it does electrons, making our final answer Copper (I). (Make sure to state the charge of transition elements! In this case our charge is 1+, so we'll put a (I) after the name!)
