Chemistry : asked on paralaw61772

18.06.2020

Which element is most likely to gain electrons in a chemical reaction?
1) kr
2) br
3) ca
4) ba

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30.05.2023, solved by verified expert

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Option 2, Br. I'll go over why all other three options are incorrect.

Option 1 - Krypton is a Noble gas, and so it doesn't need to accept electrons since it has an octet.

Option 3 and 4 - Both Calcium and Barium are alkaline earth metals, and give away electrons, since they only have 2.

-T.B.

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Bhaskar Singh Bora

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The correct answer to the question is Option 2. Br

Electronegativity is simply defined as the ability of an atom to attract electron(s)

Non metals are more electronegative than metals.

Krypton, Kr is a group 18 element which have completely filled outermost shell. They do not involve in bond formation.

Calcium, Ca and Barium, Ba are group 2 metals. They form bond by losing their 2 valence electrons.

Bromine, Br is a group 17 element which have 7 valence electrons. It is difficult for Br to lose its valence electron(s) and as such, it will form bond by either gaining 1 electron or sharing 1 electron.

With the above information, we can conclude that Option 2. Br gives the correct answer to the question.

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Chemistry

Which element is most likely to gain electrons in a chemical reaction? 1) kr 2) br 3) ca 4) ba

Step-by-step answer

P Answered by PhD

23

Option 2, Br. I'll go over why all other three options are incorrect.

Option 1 - Krypton is a Noble gas, and so it doesn't need to accept electrons since it has an octet.

Option 3 and 4 - Both Calcium and Barium are alkaline earth metals, and give away electrons, since they only have 2.

-T.B.

Chemistry

Question 16 Which of the following elements is most likely to gain electrons in a chemical reaction? A Ca B Kr с Br D Ba

Step-by-step answer

P Answered by PhD

1

Br

Explanation:

Bromine atoms tend to gain just one electron to get to a full octet, as Bromine is in Group VII.

Chemistry

Question 16 Which of the following elements is most likely to gain electrons in a chemical reaction? A Ca B Kr с Br D Ba

Step-by-step answer

P Answered by PhD

1

Br

Explanation:

Bromine atoms tend to gain just one electron to get to a full octet, as Bromine is in Group VII.

Biology

Question 13 (mandatory) (3 points) ions are atoms of the same element that have a different number of question 13 options: nuclei electrons neutrons protons nucleons question 14 (mandatory) (3 points) radium-226 is unstable. what is the process that allows the nucleus of radium-226 to become more stable? question 14 options: hydrogen bonding radioactive decay nuclear fusion ionic bonding covalent bonding question 15 (mandatory) (3 points) what parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? question

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P Answered by Specialist

19

Question 13) Electrons

Question 14) Ionic bonding

Question 15) The number of protons and neutrons

Question 16) Nuclear weapons can release much more energy than chemical reactions.

Question 17) An unstable ratio of protons and neutrons

Question 18) A homgenous solution

Question 19) An element

Question 20) Freezing

Question 21) The number of protons in an atom.

Question 22) have a full outer shell of electrons.

Question 23) Non-metals

Biology

Question 13 (mandatory) (3 points) ions are atoms of the same element that have a different number of question 13 options: nuclei electrons neutrons protons nucleons question 14 (mandatory) (3 points) radium-226 is unstable. what is the process that allows the nucleus of radium-226 to become more stable? question 14 options: hydrogen bonding radioactive decay nuclear fusion ionic bonding covalent bonding question 15 (mandatory) (3 points) what parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? question

Step-by-step answer

P Answered by Master

19

Question 13) Electrons

Question 14) Ionic bonding

Question 15) The number of protons and neutrons

Question 16) Nuclear weapons can release much more energy than chemical reactions.

Question 17) An unstable ratio of protons and neutrons

Question 18) A homgenous solution

Question 19) An element

Question 20) Freezing

Question 21) The number of protons in an atom.

Question 22) have a full outer shell of electrons.

Question 23) Non-metals

Geography

100 points, brainliest, , and more if you can answer them all! 1. what term describes physical weathering due to collisions between sand and sediment carried in moving water and the rock surface over which the water flows? a. abrasion b. wedging c. dissolving d. erosion 2. the rocky mountains began forming in the western united states about 60 million years ago. the appalachian mountains and the rocky mountains were similar in height when they first formed. which statements about the rocky mountains are true? select the two correct answers. a.

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P Answered by PhD

17

1. erosion
2. d and c
3. stromatolites
4. bites being blown off a rock by heavy winds
5. how old the earth is and how many eras
6. global cooling
7. bleaching effect
8. oxygen capturing electrons
9. dissolves rock into a solution
10. deeper and wider
11. few fossils

NOT SURE IF THESE ARE ALL RIGHT SORRY

Geography

100 points, brainliest, , and more if you can answer them all! 1. what term describes physical weathering due to collisions between sand and sediment carried in moving water and the rock surface over which the water flows? a. abrasion b. wedging c. dissolving d. erosion 2. the rocky mountains began forming in the western united states about 60 million years ago. the appalachian mountains and the rocky mountains were similar in height when they first formed. which statements about the rocky mountains are true? select the two correct answers. a.

Step-by-step answer

P Answered by PhD

17

1. erosion
2. d and c
3. stromatolites
4. bites being blown off a rock by heavy winds
5. how old the earth is and how many eras
6. global cooling
7. bleaching effect
8. oxygen capturing electrons
9. dissolves rock into a solution
10. deeper and wider
11. few fossils

NOT SURE IF THESE ARE ALL RIGHT SORRY

Chemistry

LaToya uses 50 newtons (N) of force to pull a 500 N cart. Which statements are correct about calculating LaToya s mechanical advantage? Select all that apply.A. The input force is 50 N.B. The output force is 50 N.C. The input force is 500 N.D. The output force is 450 N.E. The mechanical advantage is 10.F. The mechanical advantage is 100.

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P Answered by Master

Answer:

A

Step-by-step explanation:

The input force is 50 N. But it will not create not any change. No mechanical advantage is observed.

Chemistry

Fiona claims that the diagram below shows simple machines, but Chad claims that it shows a compound machine. A man pushes a shopping cart up a ramp. Which statement best explains who is correct? Fiona is correct because less than three machines are shown in the diagram. Fiona is correct because the diagram shows two individual simple machines. Chad is correct because more than one machine is shown in the diagram. Chad is correct because the diagram shows two simple machines doing a job.

Step-by-step answer

P Answered by Specialist

Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation:
A mechanical device using which we can change the direction or magnitude of force applied is known as simple machine.
For example, in the given diagram there are two individual simple machines.
The machine helps in changing the direction or magnitude of force applied by the man. As a result, it becomes easy for him to carry different things easily from one place to another.
Thus, we can conclude that the statement Fiona is correct because the diagram shows two individual simple machines, is correct.
Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation

Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation

Chemistry

Which of the following will have a lower ionization energy than scandium

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P Answered by Master

Calcium (Ca)(On the periodic table, ionization energy increases as you go up and to the right of the periodic table)

Calcium (Ca)(On the periodic table, ionization energy increases as you go up and to the right of the

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