There are 22 neutrons in an argon atom. you simply subtract the proton count (atomic number) from the average atomic mass. WORK: 40-18=22
Answer:
Solution temperature.
Explanation:
Hello there!
In this case, considering this question about chemical kinetics, it will be possible for us to analyze two perspectives:
1. Molecular: here, we infer that the solution temperature will provide more energy to the molecules in order to undergo more effective crashes which will make more products and therefore, increase the rate constant.
2. Mathematical: by means of the Arrhenius equation, it will be possible to tell that the increase in the temperature of the system, the negative of the exponent present in such equation will increase and therefore turn the rate constant bigger.
In such way, we infer the answer is solution temperature.
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<h3>
Answer:</h3>
All the choices given are correct
- gas bubbles
- color change
- increase in temperature
- decrease in temperature
- release of light energy
<h3>
Explanation:</h3>
- Chemical reactions occurs when elements or compounds chemically join to form other compounds.
But, how do we know that indeed a chemical reaction has occurred?
- Chemical reactions involve changes of different parameters when they occur, thus various indications are used to show the occurrence of chemical reactions.
These indications include;
- Gas bubbles, also known as effervescence, for example when sodium metal is mixed with an acid, gas bubbles will be produced showing occurrence of a chemical reaction.
- Color change, which shows the formation of a new substance.
- Increase in temperature, which occurs in endothermic reactions where heat is absorbed from the surroundings.
- Decrease in temperature, which occurs in exothermic reaction where heat is lost to the surroundings.
- Other indicators include, formation of a precipitate, production of light, etc.
Valence <span>electrons are the highest form</span>