Which statement best applies collision theory to preventing a dangerous reaction from occurring? Store the reactants together at a low pressure. Keep all sparks or flames away from the reactants. Store the reactants together at a low temperature. Keep the reactants in separate containers.
Answers
Answer:
According to collision theory, to preventing a dangerous reaction from occurring, the best is to keep reactants in separate containers (last statement).
Justification:
Collison theory states that the the reactant substances (atoms, ions or molecules) must first collide to react and form the products.
Additionally, to form the products, the collisions must meet two requirements:
- the reactant substances must collide with the correct orientation, and
- the reactant substances must collide with energy enough to form the activated complex (transition state).
Hence, the collision theory permits youpreventing a dangerous reaction from occurring, by using the elemental knowledge that the substances must first collide in order to they react, and so the most effective way is to keep the reactants in separate contaners, preventing the reactants from coming into direct contact.
Answer: Option (d) is the correct answer.
Explanation:
According to collision theory, the particles should colloid frequently and they should be placed in proper orientation.
Whereas sometimes even at low temperature, reactant particles have enough energy. As a result, they tend to colloid or react with each other. Hence, it leads to a chemical reaction which might be dangerous.
Therefore, it is suitable to keep the reactant particles in separate containers so that a chemical reaction cannot take place.
So, we can conclude that the statement keep the reactants in separate containers best applies collision theory to preventing a dangerous reaction from occurring.
Related Questions
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The atomic mass of an element can be approximated by adding the number of _______ plus the average number of _______.A. protons; electrons B. protons; neutrons C. neutrons; electrons
In a laboratory, a student makes a solution by completely dissolving 80.0 grams of KNO3(s) in 100.0 grams of hot water. The resulting solution has a temperature of 60.°C. The room temperature in the laboratory is 22°C.Classify, in terms of saturation, the type of solution made by the student.
Two substances, A and Z, are to be identified. Substance A can not be broken down by a chemical change. Substance Z can be broken down by a chemical change. What can be concluded about these substances?(1) Both substances are elements.(2) Both substances are compounds.(3) Substance A is an element and substance Z is a compound.(4) Substance A is a compound and substance Z is an element.
Answers
The main distinction between ionic and covalent bonding is that ionic bonding is the complete transfers of electrons between atoms whereas covalent bonding is the sharing of electrons between atoms.
Final answer:
The main difference between ionic and covalent bonding is the way electrons participate in the bonding. In ionic bonds, electrons are transferred and attract each other due to opposite charges. In contrast, covalent bonding involves sharing of electron pairs between atoms, usually resulting in stronger bonds.
Explanation:
The main distinction between ionic and covalent bonding is the way in which the electrons are involved. In an ionic bond, electrons transfer from one atom to another, resulting in a positive and a negative ion that attract each other due to opposite charges. The energy change associated with ionic bonding depends on three key processes; the ionization of an electron from one atom, the acceptance of the electron by the second atom, and the Coulomb attraction of the resulting ions.
On the other hand, the covalent bond involves sharing of electrons between two atoms. These electrons move back and forth between the atoms and do not permanently stay with one atom. Because of this shared electron pair, covalent bonds are stronger than ionic bonds.
Deciding whether a bond is ionic or covalent often involves considering the types of atoms involved and their relative positions on the periodic table. Bonds between two nonmetals are generally covalent, while bonding between a metal and a nonmetal is often ionic by nature.
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Answers
Answer: 0.125 grams
Explanation:
Radioactive decay follows first order kinetics.
Half-life of give isotope = 20 minutes
N = amount left after time t= ?
= initial amount = 1.0 g
= rate constant
t= time = 1 hour = 60 min
N=0.125g
Thus amount left after 1 hour is 0.125 grams
Answers
Nuclear fusion reactions release a lot of energy
Explanation:
In natural philosophy, the nuclear reaction could be a reaction during which 2 or additional atomic nuclei identical enough to create one or additional completely different atomic nuclei and subatomic particles (neutrons or protons). The distinction in mass between the reactants and product is manifested because the unharness of enormous amounts of energy.
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Final answer:
Nitrogen gas consists of a molecule of two nitrogen atoms, known as a nitrogen-nitrogen triple bond, making it stable and unreactive. Diatomic nitrogen atoms or compounds of nitrogen atoms are not correct representations of nitrogen gas due to the bonding and structure of nitrogen gas.
Explanation:
Nitrogen gas consists of a molecule of two nitrogen atoms. In this molecule, the two nitrogen atoms are bound together in what is known as anitrogen-nitrogen triple bond, which is very strong. This is why nitrogen gas is very stable and unreactive under normal conditions.
Therefore, a diatomic nitrogen atom or a compound of nitrogen atoms is not a correct representation of nitrogen gas because these expressions do not accurately reflect the bonding and molecular structure of nitrogen gas.
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b. a compass needle.
c. a circuit.
d. poles.
Answers
Answer:
d. poles
Explanation:
Magnetic field created by a solenoid:
The magnetic field created by a solenoid is increased by increasing the intensity of the current, by increasing the number of turns and by introducing a piece of iron inside the coil (electromagnet).
Solenoid coil with air core constructed with bare copper wire spirally wound and protected with insulating varnish. If we supply this coil with electric current using any source of electromotive force, such as a battery, for example, the flow of the current that will circulate through the coil will lead to the appearance of a magnetic field of a certain intensity around it.
Solenoid coil to which a metal core such as iron (Fe) has been introduced. If we compare the previous coil with air core with the coil of this illustration, we will see that now the lines of magnetic force are much more intensified as they have become an electromagnet.