Write a nuclear equation for the fusion of two h−2 atoms to form he−3 and one neutron.

Answers

Answer 1

Answer:

'Heavy' hydrogen (the isotope deuterium) , 2/1H is involved ,

[2= mass number, 1= atomic (proton) number]

2/1H + 2/1H → 3/2He + 1/0n

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Describe the role of energy in chemical reactions.

Answers

Energy in a chemical reaction is not created nor destroyed, it's always conserved based on the law of conservation of energy.

The process where bacteria takes nitrogen out of the air and makes it usable for other organisms is called

Answers

Answer:

The process is called Nitrogen fixation

Explanation:

The nitrogen fixation is a process carried out by some prokaryotic microorganisms (bacteria), specifically those have the presence of the nitrogenase enzyme. The bacteria absorb the atmospheric nitrogen (N2) from the roots of plants, and the nitrogenase enzyme, with the help of two proteins that act as electron donors and acceptors (nitrogenase complex) reduce the nitrogen to ammonia (NH3), then the ammonia is ionized to NH4+ (ammonium). Followed by that, the ammonia is oxidated to nitrates and nitrites, which are finally absorbed again by plants.

How does the reaction affect oxygen atoms?

Answers

In the oxygen structure, all electrons are paired, thus, making oxygen dimagnetic. But actual experiments have shown that oxygen has paramagnetic properties. They are attracted to magnets.

The oxygen atoms react according to the kind of reaction it undergoes. Mostly, O2 is present in combustion reactions. For example, combustion of carbon:

C + O2 ---> CO2

NEED HELP ASAP PLEASEIdentify the type of bonding, covalent, ionic, or metallic, between
the atoms in an oxygen molecule.

Answers

Answer:

here hope it helps

Explanation:

covalent bonds

What the guy said on top he is right.

Which polyatomic ion contains the greatest number of oxygen atoms?(1) acetate (3) hydroxide
(2) carbonate (4) peroxide

Answers

Carbonate ion contains the greatest number of oxygen atoms. So, the correct option is (2).

Polyatomic ion: refers to a charged chemical ion or species made up of two or more covalently joined atoms, or a metal complex that can be considered to behave as a single unit.

Acetate(C2H3O−) has two atoms of oxygen, carbonate has three oxygen atoms $(CO_3^(2-))$ , hydroxide $(OH)^(-)$ has one, and peroxide ( $H_2O_2$ )has two atoms of oxygen. Thus, carbonate has the highest number of oxygen atoms.

To know more about:-

brainly.com/question/12852496

Answer:

The correct answer is option 2, that is, carbonate.

Explanation:

A molecular ion, also known as a polyatomic ion, refers to a charged chemical ion or species comprising two or more atoms that are combined covalently, or of a complex of a metal, which can be regarded to be functioning as a single unit.

Of the given options, acetate has two atoms of oxygen, carbonate has three oxygen atoms, hydroxide has one, and peroxide has two atoms of oxygen. Thus, carbonate has the highest number of oxygen atoms.

Scientists use critical thinking skills throughout the process of research or experimentation. A student notices that their energy level always seems to decrease when they drink soda, but they seem to have more energy when they don’t drink soda. The student decides to conduct an experiment to determine if their soda intake really does have an effect on their energy level. What critical thinking step has the student just completed in the situation described above?a.
Asking a question
b.
Evaluating a promotional claim
c.
Adjusting a conclusion
d.
Determining a logical conclusion

Answers

Answer : Option A) Asking a question.

Explanation :

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.

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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

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