The answer would be F₂. This is because you have 2 fluorine atoms. so you divide the 38g/mol by 2 atoms which gets you 19 g/mol per atom. Now all you have to do is find the atom with the molar mass of 19g/mol which is fluorine.
I hope this helps :)
only if it is not reversible.
c.
by applying Le Châtelier’s principle.
b.
only if the temperature is low enough.
d.
under no circumstances.
Asking a question
b.
Evaluating a promotional claim
c.
Adjusting a conclusion
d.
Determining a logical conclusion
The step that the student just completed in the situation given above is asking a question.
As the student noticed that consumption of soda deceases their energy level, he asked the question to this why does this happens? this was the first step of using critical thinking skills to ask a question first analyze it and then perform and witness some experimental observations and come out with the conclusion.
But in this given example he just completed the first step of asking question. Therefore, the answer is asking a question which is option A.
The scientific method is carried out in several stages:
1. Observation,
2. Determine the problem
2. Data, collect information
3. Hypothesis
4. Experiments
5. Analysis
6. Conclusion
7. Compilation of laws or theories
In the context of the problem, students will experiment to study the effect of
So students issue a question which is why can affect their energy, Thus students have made the first 2 steps in the scientific method :
1. Observation of and the human's energy level,
2. Determine the problem that will be the basis of student research, namely the influence of the human's energy level.
Indirectly this student has obtained 2 variables to be examined, namely variable and human energy level, which can be changed according to conditions, which are chosen as fixed variables and which ones are independent variables.
So that the next step is collecting data and so on can be done immediately
If we look at other answer choices :
B. Evaluating a promotional claim
This stage is done after the results of the research have been obtained so that students can submit an evaluation of their learning outcomes
C. Adjusting a conclusion
This stage will be obtained after students have completed the analysis of the experimental data
So the most appropriate answer is A.Asking a question
the Scientific Method
scientists use the scientific method
the purpose of the scientific method
Keywords: scientific method, fixed variable, independent variable, asking a question, human energy level
Decomposers
Primary consumers
Secondary producers
Answer: Primary producers
A food chain is a linear series of transfer of food and energy when one organism is consumed by the other organism in an ecosystem. The energy is distributed among different tropic levels of the food chains.
Phytoplankton is a class of unicellular simple, autotrophic organisms which are found in water of ocean, lakes and or any other freshwater body. These includes dinoflagellates, diatoms, cynobacteria, green algae and others. These organisms are abundantly present in the ecosystem in the lower most trophic level. They are called as primary producers because they are consumed by other organisms such as zooplanktons, fishes and large sea mammals.
Fluorine and chlorine are in the same group of the periodic table (Group 17) because they both have seven electrons in their outermost shell which leads to similar chemical behavior. Fluorine's electronic structure is 2,7, while chlorine's is 2,8,7.
Fluorine and chlorine are in the same group (Group 17) on the periodic table because they have similar electronicstructures, specifically, they both have seven electrons in their outermost (valence) shell. This same property results in similar chemical behaviors as elements in the same group of the periodic table tend to have similar properties because they have the same number of valence electrons.
The electronic structure of fluorine, which has 9 electrons in total, is 2,7. This means there are 2 electrons in the first energy level and 7 in the second. Chlorine, with 17 electrons total, has an electronic structure of 2,8,7. This means there are 2 electrons in the first energy level, 8 in the second, and 7 in the third.
#SPJ2