The coefficient of that will show that the law of conservation of mass is obeyed by the equation would be 2.
<h3>What is law of conservation of mass?</h3>
It states that mass can neither be created nor destroyed in chemical reactions but can be converted from one form to another.
Thus, in the reaction represented by the equation below:
The coefficient of must be 2 in order for the equation to balance and thus, obey the law of conservation of mass.
More on the law of conservation of mass can be found here:brainly.com/question/13383562
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Answer:
I would expect to extract the acetic acid.
Explanation:
In the first step, since we are adding a concentrated acid,<u> it will react with the bases present in the mixture (diethylamine and ammonia) </u><u>forming salts</u><u>, </u><u>which are soluble in water</u>. Therefore, after draining the aqueous layer, we will have phenol and acetic acid left in the organic layer.
In the second step, we are adding a diluted base, so it will react with a strong acid. This compound is acetic acid, and its salt will be present in the aqueous layer. Phenol will be left on the organic layer.
Answer:
1- Option (A)
2- Option (A)
Explanation:
The pressure is often defined as the force per unit area. In the atmosphere, the pressure is maximum at the troposphere and is tightly packed near the ground surface. The troposphere is the region where the temperature decreases with the increasing height. The atmospheric pressure at sea level is nearly 1013.2 millibar (mb). The difference in the pressure in this layer causes the wind that is responsible for the occurrence of different types of weather patterns.
The earth and the sun maintains the shortest distance at its Perihelion position, which takes place in the month of January during the winter season in the northern hemisphere. And on the other hand, the earth is far away from the sun at its Aphelion position that takes place in the month of July.
Hence, the correct answers are given above.
Given: Molecular formula of the compound is C₈H₁₁O₂
Since C₈H₁₁O₂ molecule contains two atoms of oxygen which is equal to one mole.
∵ In 1 mole of C₈H₁₁O₂, oxygen has = 1.0 mole
∴ In 3.7 moles of C₈H₁₁O₂, oxygen has = (1.0 mole) × (3.7 moles) ÷ (1 mole)
= 3.7 moles
Hence, oxygen has 3.7 moles in 3.7 moles of C₈H₁₁O₂
Answer:
The molecules or ions in a solution can freely intermingle.
Explanation:
The reactant molecules and ions can move freely in solution, so thy are more likely to collide with each other and form products.
A is wrong. Solutions are homogeneous.
B and C are wrong. The statements are correct, but they are not the reason why reactions are carried out in solution.
D is wrong. Chemical reactions do not always produce a colour change.
F is wrong. Some chemicals react with water, so other (often flammable) solvents must be used.