Which coefficient should be placed in front of PCl3 to balance this equation?
1246
In order to balance this, you have to count each element where the elements in the reactants side and the product side should have equal number of molecules. The balanced reaction is as follows:
P4(s) + 6Cl2(g) = 4PCl3(l)
Thus, the answer is 4.
Answer:
4
Explanation:
I got it right on edge
Answer:
Milk, cream, milk solids, sugars, modifying agents and flavourings are blended together in stainless steel vats.
The mix is homogenised to create a consistent texture.
The mix is pasteurised by heating at 82-85°C for 15 seconds then cooled to destroy bacteria.
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According to one acid-base theory, the NH3(g) molecules act as
(1) an acid because they accept H+ ions
(2) an acid because they donate H+ ions
(3) a base because they accept H+ ions
(4) a base because they donate H+ ions
According to the Bronsted-Lowry concept of acids and bases, a base accepts protons. Here NH₃ accepts a proton to form the conjugate acid NH₄⁺. Hence, it acts as a base.
There are various theories regarding the nature of acids and bases. According Bronsted-Lowry concept of acids and bases, acids are substances which donates a proton and bases are proton accepters.
The species which is formed by donating a proton from the acid is called conjugate base of the acid and the species which is formed after a base accepts a proton is called the conjugate acid of the base.
Consider the given reaction of ammonia with water. Here water is a proton donor and thus acts as an acid whereas ammonia accepts the proton from water forming its conjugate acid NH₄⁺. Water forms its conjugate base OH-. Therefore NH₃ acts as a base in this reaction.
To find more on Bronsted-Lewis concept, refer here:
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Answer:
19.1 mol H2
Explanation:
1. Hello, first you have to propose the chemical equation:
H2 + CO2 = H2O + CO
The equation has to be balanced, it means that the same quantity of atoms must be in the right and left side of the equation.
2. To do the stochiometric calculus, you need to find which one is the limiting reactant, in the problem says that you are working with an excess of carbon dioxide, so the limiting reactant is hydrogen H2:
Limiting reactant: H2
Excessing reactant : CO2
3. With the limiting reactant and the chemical equation, you have to establish the stichometrical relation to calculate the quantity of all reactants and products:
In a base of the chemical equation, and using the limiting reactant:
1 mol H2 = 1 mol H2O
The exercise says that you have 19.1mol of water vapor (H2O(g)), then to calculate the mol of H2 you need, you make the calculus as follow:
19.1 mol H2O ×( 1mol H2/1 mol H2O)= 19.1 mol H2
The exercise completed is in the document attached.
In an exothermic energy diagram, the reactants side is higher in energy than the product side.
An exothermic reaction is one in which the heat of the reactants is greater than that of the products. In that case, energy is given off in the reaction as heat and the reaction vessel is warmer.
Now, in an exothermic energy diagram, the reactants side is higher in energy than the product side.
Learn more about exothermic reaction:brainly.com/question/12786977
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Answer:
The correct answer is "single replacement".
Explanation:
The activity series is a representation of a series of metals that are organized according to their order of reactivity. They start from the highest order of reactivity to the lowest order of reactivity.
The purpose of the series is to determine which products are formed in single-displacement reactions. The higher-order metals replace the lower order metals if there are two of them in the same solution. If metal is higher in the series it is more reactive than a metal that is below it in the activity series.
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