CHEMISTRY MIDDLE SCHOOL

Which best describes the motion of iron atoms in solid iron?

Answers

Answer 1
Answer:

Answer:

Vibration best describes it

Related Questions

Describe three properties of a frozen fruit bar including its state of matter.
The planet we call Earth has how many main layers
What is the [H+] of a solution with a pH of 5.6
Select all the correct images.Select the two atomic models that belong to the same element.
The job the part does within organism is the

The number of valence electrons in each atom of an element affects the elements

Answers

Explanation:

The number of valence electrons or outermost electrons present in an atom determines the chemical properties of an atom.

Therefore, atoms belonging to same group have same number of valence electrons. Thus, atoms of a group have similar chemical properties.

Hence, we can conclude that the number of valence electrons in each atom of an element affects the elements chemical properties.

The number of electrons in an atom's outermost valence shell governs its chemical properties. Elements react to form a closed shell, corresponding to the electron configuration s2p6 . This tendency is called the octet rule, because the atoms have eight valence electrons.

N2 + 6e → 2N-3The reaction above represents which of the following?
a. Reduction
b. Decomposition
Oxidation
d. Acid-Base Netralization​

Answers

Answer:

The correct answer is reduction.

Explanation:

Nitrogen gas reacts with hydrogen gas and get reduced to form ammonia. In this reaction.This is important reaction of atmospheric nitrogen fixation.The reaction is carried out by many nitrogen fixing bacteria such as Azotobacter,Clostridium etc.

        N2+3H2+6e-  =  2NH3

Final answer:

The reaction N2 + 6e → 2N-3 represents reduction, where nitrogen gains electrons to form N-3 ions.

Explanation:

The reaction N2 + 6e → 2N-3 represents reduction. In this reaction, nitrogen (N2) gains electrons (e) to form N-3 ions. Reduction is a process in which an atom or ion gains electrons, resulting in a decrease in its oxidation state.

Learn more about Reduction here:

brainly.com/question/33512011

#SPJ3

What happens to water once it reaches earths surface?

Answers

It either soaks into the ground, eventually ending up in acquifers. Also it runs off into creeks and rivers, eventually reaching the ocean. Once it goes into the ground it becomes ground water.

Which is an example of an atom?A)the smallest unit of Ne
B)the smallest unit of p4
C)the smallest unit of NH3
D)the smallest unit of H2O

Answers

It is A)The smallest unit of Ne 

Three students made multiple weighings of a copper cylinder, each using a different balance. Describe the accuracy and precision of each student’s measurements if the correct mass of the cylinder is 47.32 g.

Answers

Accuracy is the closeness of a measurement to its true value. Precision is the closeness of more than one measurements to each other. The measurements of Lamant is both accurate and precise while the scale of Colin is the opposite. Kirvin is precise but he is not accurate.

Final answer:

Accuracy relates to how close a measurement is to the true value, whereas precision refers to how similar multiple measurements are to each other. Assuming Student A's measurements were close to 47.32g and each other, they were both accurate and precise. Student B's would be imprecise but precise if they were not close to 47.32g but close to each other, while Student C's measurements would be neither if they were scattered and not close to 47.32g.

Explanation:

In Physics, when we discuss measurements, two important concepts come up: accuracy and precision. Accuracy refers to how close a measurement is to the actual, true value, in this case, 47.32g. Precision, on the other hand, signifies how close several measurements are to each other, irrespective of how accurate they are.

For each student's weighings:

  • Student A's measurements were all very close to 47.32g, porvided they were also close to each other, then their measurements were both accurate and precise.
  • Student B's measurements were not close to 47.32g, but were very close to each other, then their measurements were imprecise but precise.
  • Student C's measurements were all over the place and not at all close to 47.32g, then their measurements were neither accurate nor precise.

Learn more about Accuracy and Precision here:

brainly.com/question/10883342

#SPJ6

Important substances found in food, which promote growth and good health

Answers

vitamins and nutrients
Protein would be the main one.
Other Questions
Help please ASAPHow is salicylic acid obtained?
Select the correct answer from each drop-down menu.Complete the statements about the nature of scientific knowledge.Among the different types of scientific knowledge, are likely to be modified or discarded most frequently. Long ago, in the 1600s, scientists discarded the phlogiston theory because
I need help please on these questions, i can not do the model, so please help me, if you could give me an example that would be great 1. Which of the stages of the water cycle were you able to observe in your model?2. What is the energy source in your model and what does it represent?3. Did you observe evapotranspiration in your model? If yes, where? If no, howcould you have demonstrated it?4. Where in your model does condensation occur more rapidly? How do you know?5. Do you think your model accurately demonstrates the water cycle? Why or whynot? If you were to redesign your model, how would you refine it?5 point for each.
Kendall wants to determine if there is a trend in air temperature changes during April . Which procedure should she chose? A) measure the temperature every hour for 1 dayB) measure the temperature at noon everyday P.S This is Science