Figure 2 shows what happens to the electrons in the outer shells when a sodium atom reacts with a fluorine atom.

The dots (•) and crosses (x) represent electrons.

Describe, as fully as you can, what happens when sodium reacts with
fluorine to produce sodium fluoride.

Figure 2 Shows What Happens To The Electrons In The Outer Shells When A Sodium Atom Reacts With A Fluorine

Answers

Answer 1

Sodium reacts with fluorine to make a covalent bond between them.  A covalent bond is formed when there is a mutual sharing of electrons between the two adjacent atoms.

Here, Sodium is metal and fluorine is non-metal. So, the bond between them may be an ionic bond, but as the Sodium has one valence electron and fluorine is highly electronegative. Sodium wants to lose electrons and fluorine wants to gain electrons to form a chemical bond. Therefore, the sodium donates its valence electron to fluorine, forms a cation, and fluorine accepts the electron and forms an anion and they distribute the difference in the charge between them.

So, we can say that when sodium and fluorine react to form sodium fluoride with a covalent bond.

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Related Questions

Question 3
Not yet
answered
Points out of
If you dissolve 2.70 g of NaCl in 425 mL of water, what is the molarity of the
solution? (Report your answer to three places past the decimal point. Moodle is
looking for a number only, no units.)

Answers

I added a screenshot because I recently answered the same question. I hope this helps you!! :)

What does the NaBr + Cl₂ represent
in the reaction?
NaBr + Cl₂ →>>
NaCl + Br₂

Answers

Answer:

The reactants

Explanation:

The molecules on the left side of the reaction are the reactants. Reactants are the molecules which react with one another to form something new.

The molecules on the right side of the reaction are the products. Products are the molecules that form in response to the reaction.

When some water condensed
onto a glass, it released 9.15 Cal
of energy. How many joules of
energy is this?
[?] joules

Answers

When we convert 9.15 Calories to joules, the result obtained is 38.28 Joules

How do i convert 9.15 calories to joules?

From the question given above, the following data were obtained:

Energy (in Calories) = 9.15 caloriesEnergy (in Joules) =?

The conversion scale to convert calories to joules is given below:

1 Calorie = 4.184 Joules

Using the above scale, we can convert 9.15 calories to joules as shown below:

1 Calorie = 4.184 Joules

Therefore,

9.15 Calories = (9.15 Calorie × 4.184 Joules) / 1 Calorie

9.15 Calories = 38.28 Joules

Thus, we can conclude from the above calculation that the energy in joules is 38.28 Joules

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Answer:

38,200J

Explanation:

 9.15 x 4.18 x 1000= 38,247 → 38,200J

Please help!
Three sections of the periodic table are labeled A, B, and C in the image below.

Which of the following statements is most likely true for an element present in section A?

It is dull and brittle.
It is malleable and ductile.
It is a liquid at room temperature.
It is a poor conductor of electricity.

Answers

Answer:

they are metals so they are:-

-malleable

-ductile

because metallic bonding is the same in all direction throughout the solid

The work of which scientist was most essential to the use of radioactive isotopes in medicine

Answers

The work of John Lawrence scientist was most essential to the use of radioactive isotopes in medicine.

Which scientist use of radioactive isotopes in medicine?

John Lawrence was the first scientist that use a radioactive isotope in the treatment of a human disease. He became known as the father of nuclear medicine and his laboratory is considered the birthplace of this field.

So we can conclude that the work of John Lawrence scientist was most essential to the use of radioactive isotopes in medicine.

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□ 4. In a closed container, the temperature is increased by 50%. Which of the following will happen to the gas inside the container?
O It will remain unchanged.
The molecules will move more slowly.
The molecules will exert less pressure on the container walls
O The molecules will move more quickly.

Answers

Answer: The molecules will move more quickly.

Explanation:

As temperature increases, the kinetic energy of the particles increases, causing them to move more quickly.

Balance the equation in the space below for the reaction of ammonia and oxygen, using the smallest whole number coefficients
NH₂(g) + O₂(g) → N₂(g) + H₂O(g) + energy ​

Answers

The balanced equation of the reaction is:

2 NH₂(g) + O₂(g) → N₂(g) + 2 H₂O(g) + energy

What is a balanced equation of a reaction?

A balanced equation is an equation of a reaction in which the moles of atoms of elements in the reaction are equal on both sides of the equation.

The given equation can be balanced as follows:

2 NH₂(g) + O₂(g) → N₂(g) + 2 H₂O(g) + energy

Therefore, the balanced equation of the reaction is the one in which the moles atoms of reacting elements are equal.

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Which two protests evolved from symbolic relationships of organism which resulted in eukaryotic organisms chloroplast

Answers

Red algae and euglena evolved from a symbiotic relationship of organisms, which resulted in eukaryotic organisms containing chloroplasts

Theory of endosymbiosis:


Early eukaryotes developed by the symbiotic connection of prokaryotes, in accordance with the endosymbiosis idea. Which two protists underwent symbiotic evolution, leading to the development of eukaryotic creatures with chloroplasts.

-Symbiotic relationships between two or more prokaryotic cells led to the evolution of the first eukaryotic cells. Greater prokaryotic cells invaded or devoured smaller prokaryotic cells. The connection provided a secure home and nourishment for the tiny cells. By absorbing part of the organic molecules or energy generated by the endosymbionts, the bigger cells (now referred to as hosts) profited.

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Rosalind franklin helped discover the structure of what molecule?.

Answers

That would be...*drumroll* the structure of DNA!

How many grams of nitrogen,
N2, would be required to react with
6.25 moles hydrogen, H2?

N₂ + 3H₂ → 2NH3

[?] g N₂

Answers

Answer: 29.2

Explanation:

From the coefficients of the equation, we know that for every 3 moles of hydrogen consumed, 1 mole of nitrogen is consumed.

This means we would need 6.25/3 = 2.0833333333333 mol of nitrogen.

Nitrogen has an atomic mass of 14.007 g/mol, so 2.0833333333333 moles of nitrogen have a mass of (14.007)(2.0833333333333) = 29.2 g (to 3 sf)

Which of the following is used as a thermal insulator?
A. A hot plate to keep the mug warm

B. A ceramic mug filled with coffee

C.a lid to cover the coffee mug

D. A metal spoon to stir the coffee

Answers

B !! Reasoning on why: a thermal insulator is basically somthing helping to keep heat in.

Please help ASAP

Is there any evidence that a reaction has occurred? (One or more answers may be true.)

a. No, there is no change in the solution.
b. Yes, because H2SO4 is being added.
c. Yes, a precipitate formed.
d. Yes, there is a change in conductivity.

Answers

B and C are the correct answers
B and C are the correct answer ofc

A reduction reaction involves either the addition of hydrogen or removal of:

Answers

Reduction involves the either the addition of hydrogen and removal of oxygen.

What is reduction?

Reduction involves the removal of oxygen.

This implies there is a loss of oxygen in reduction.

This can be represented in the extraction of iron from it ores.

Fe₂O₃ + 3CO →  2Fe + 3CO₂

Reduction is also the addition of hydrogen. This implies it is the gain of hydrogen.

For example

CH₃CHO → CH₃CH₂OH

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what is carbon cycle​

Answers

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone.

Will sodium iodide react with bromine to produce sodium bromide and iodine? Why or why not?

Question 10 options:

A) Yes, because bromine has lower activity than iodine

B) No, because bromine has higher activity than iodine

C) No, because bromine has lower activity than iodine

D) Yes, because bromine has higher activity than iodine

I believe its either B or D

Answers

Answer:

C

Explanation:

The higher the period the higher the activity of an element, therefore, since iodine is in period 6 and bromine is in period 5, the described reaction is not possible due to the fact that bromine is less active

A can of coke which is 12.0ml and is at a temperature of 18.0°C is placed into a refrigerator freezer. The
can was accidently left over night and the temperature dropped to -1.00°C. What would happen to the
volume of the coke can?

Answers

Answer:

See below

Explanation:

Volume would decrease to temp of approx 4 C  then it would slightly increase to the 1 degree C  point but it would still be a smaller volume than at 18 C .    

  ( this assumes a freezing point of   - 1.11 C for Coke )

The density of lead is 11.3 g/mL. What is the mass of 45 mL of the metal?

Answers

Answer:

510g

Explanation:

45mL..

1mL

_____ = 510g

11.3g

4. How many moles of atoms are present in 7 moles of sulfuric acid, H₂SO4?
Avogadro's Number: 6.022 X 1023
a) 7 x 6 x 1023
b) 49
c) 21
d) 7

Answers

Answer:

49 moles of atoms

Explanation:

There are 7 individual atoms in each molecule of H2SO4:  (2 hydrogens + 1 sulfur + 4 oxygens).

Therefore, if 7 moles are decomposed, there would be 7 times that amount of individual atoms:

7 x 7 = 49 moles of atoms

4 Many tourists to China want to see giant pandas. Suggest how this could be used to help to conserve the pandas. ​

Answers

Answer: to protect giant pandas

Explanation:

When hydrated copper(II) sulfate crystals are heated, anhydrous copper(II) sulfate forms. A mass of 12.5 g of hydrated copper(II) sulfate crystals is heated in a crucible until all the water of crystallisation is removed.
A mass of 8.0 g of anhydrous copper(II) sulfate forms.
Calculate the formula of hydrated copper(II) sulfate CuSO4.nH2O
Show your working.
[Mr of CuSO4 = 159.5 Mr of H2O = 18]
Mass of water = g
Water of crystallization (n) =
Formula of hydrated copper(II) sulfate =

Answers

The formula of hydrated copper(II) sulfate is CuSO4.10H2O

What is the formula of the hydrated copper (ii) sulfate salt?

The formula of the hydrated copper (ii) sulfate is determined as follows:

Mass of hydrated salt = 12.5 g

Mass of anhydrous salt = 8.0 g

Mass of water = 12.5 - 8 = 4.5 g

mole ratio of water and anhydrous salt is;

4.5/18 : 8.0/159.5

0.562 : 0.05

10 : 1

Water of crystallization (n) = 10.

Therefore, the formula of hydrated copper(II) sulfate is CuSO4.10H2O

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An aqueous solution of 4 mol/L nitric acid is electrolysis in an electrolytic cell using graphite electrodes.

Name the gas given off at the anode

Answers

The gas given off at the cathode is hydrogen while the gas given off at the anode is oxygen.

What is electrolysis?

The term electrolysis has to do with the decomposition of a substance by the passage of a direct current through it.

The ions present in the system are[tex]H^+[/tex], [tex]OH^-[/tex] and [tex]NO_3^-[/tex] ions. The gas given off at the cathode is hydrogen while the gas given off at the anode is oxygen.

The half-reaction equation of the reduction is;

[tex]2H^+(aq) + e[/tex] → [tex]H_2(g)[/tex]

The oxidation half-reaction equation is;

[tex]4OH^- (aq)[/tex] → [tex]2H_2O(l) + 4e[/tex]

The overall equation is;

[tex]4H^+(aq) + 4OH^- (aq)[/tex] → [tex]4H_2(g) + 2H_2O(l) + 4e[/tex]

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What functional group is found in a carboxylic acid?
OA. Ester
B. Amino
C. Carbonyl
D. Hydroxyl

Answers

Answer:

the answer is c

Explanation:

A carboxylic acid is an organic compound that contains the carboxyl functional group.

What kind of exercise does not require the use of oxygen to metabolize energy? strength aerobic stretching anaerobic

Answers

Answer:

See Below

Explanation:

'an aerobic ' means it does not use oxygen

Answer:

anaerobic

Explanation:

Which group of the periodic table consists of elements that share similar
properties and have 2 electrons in their outer shells?
A. 1
B. 14
C. 13
D. 2

Answers

The alkaline earth metals are also referred to as Group 2A. elements are comparable to one another in terms of their electron configurations and thus, their properties.

Alkaline-earth metals:

From beryllium (Be) through radium, the alkaline-earth metals comprise Group 2 of the periodic table (Ra). The alkaline earth metals are so reactive because each of these elements has two electrons in its lowest energy level that they are rarely encountered alone in nature. However, they don't react as quickly as alkali metals do. Compared to the alkali metals, their chemical reactions normally proceed more slowly and generate less heat.

Elements and their electronic configuration are listed below:-

Be :- [He]2S2

Mg:-[Ne]3S2

Ca :-[Ar]4S2

Sr:-[Kr]5S2

Ba:-[Xe]6S2

Ra:-[Rn]7S2

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Group 2A is another name for the alkaline earth metals, which are similar to one another in terms of their electron configurations and thus, their properties.

Alkaline Earth Metals

Group 2 of the periodic table is made up of alkaline-earth metals, starting with beryllium (Be) and ending with radium (Ra). The fact that each of these elements possesses two electrons at its lowest energy level makes the alkaline earth metals extremely reactive, which is why they are rarely found by themselves in nature. They don't respond as quickly, though, as alkali metals do. Their chemical reactions often take longer and produce less heat than those of the alkali metals.

Following is a list of elements along with their electronic configuration:-

Be:- [He]2S2

Mg:-[Ne]3S2

Ca:-[Ar]4S2

Sr:-[Kr]5S2

Ba:-[Xe]6S2

Ra:-[Rn]7S2

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a fossil contains c14 and n14 in the ratio of 1:3 how old is the bone

Answers

Answer:

Approximately 11460 Years Old

Explanation:

i looked this up :/

way to much maths for me

The age of the bone given that it contains C-14 and N-14 in ratio of 1:3 is 11460 years

How to determine the percentage remaining

C-14 is usually used for radioactive dating (i.e to determine the aga of substance)

From the question, C-14 and N-14 exist in ratio of 1:3.

thus, the amount of C-14 remaining can be obtained as follow:

Ratio of C-14 = 1Ratio of N-14 = 3Total ratio = 1 + 3 = 4Percentage of C-14 remaining =?

Percentage of C-14 remaining = 1/4 × 100

Percentage of C-14 remaining = 25%

How to determine the number of half-lives that has elapsedOriginal amount (N₀) = 100%Amount remaining (N) = 25%Number of half-lives (n) =?

2ⁿ = N₀ / N

2ⁿ = 100 / 25

2ⁿ = 4

2ⁿ = 2²

n = 2

How to determine the ageHalf-life of C-14 (t½) = 5730 yearsNumber of half-lives (n) = 2Time (t) = ?

t = n × t½

t = 2 × 5730

t = 11460 years

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explain why nickel is a good conductor of heat​

Answers

Answer:

Its a good conductor because its a metal

Answer:

periodic table

Explanation:

in its magnetic properties and chemical activity it resembles iron and cobalt

. You need to prepare 755ml of a 3.50M solution of sodium hydroxide solution. If
the original solution had a molarity of 20.0M how much should you take out to
make the diluted solution?

Answers

M₁V₁=M₂V₂

20 x V₁ = 3.5 x 755

V₁ = 132.125 ml

The exothermic reaction between solid aluminium powder and solid manganese (IV) oxide, produces solid manganese and
another product. How many moles of aluminium powder are needed to produce 203.7 grams of manganese?

Answers

The number of moles of aluminum powder needed to produce 203.7 grams of manganese is 5 moles.

How to calculate the number of moles of Aluminium powder?

Heat, Mn, and Al2O3 are produced when aluminum powder and manganese dioxide are heated.

[tex]3MnO_{2} + 4Al - > 3Mn + 2Al_{2} O_{3} + Heat[/tex]

The balanced chemical equation in this situation indicates that there are 3 moles of manganese and 4 moles of aluminum involved in the reaction, which results in a 3:4 mole ratio.

You may make use of this mole ratio by calculating how many moles of aluminum are required to react with the 203.7g of Manganese. So,

Firstly, the mass of Aluminium has to be taken out

Let the mass be considered x.

So, the number of moles of Aluminium = x/27

Number of moles of Manganese = 203.7/54

Hence, the mass x will be,

[tex]x = 4 *203.7 * 27 / 3 * 54[/tex]

[tex]x = 135.8g[/tex]

Hence,  the number of moles of Aluminium is = 135.8/27 = 5 moles.

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The human skeleton is made mostly
of hard blank
tissue.

Answers

Calcified tissue. Why: I just know

Which of the following is the best thermal insulator to reduce the transfer of
thermal energy by radiation?
O A. Air
OB. Glass
O C. Wood
OD. A vacuum

Answers

Among the given mediums, Vaccuum is the best thermal insulator to reduce the transfer of thermal energy by radiation as there will be no air particles which carries heat from one place to other. Hence, Option (D) will be the correct option

What is Heat radiation ?

Heat Radiation refers to the transfer of heat from a hot body to cold body directly, without heating the medium between two bodies.

Vaccum does not have any particles in it. Thus, there will be no transfer of heat through it.

The best example of it is thermous flask in which vaccuum inside thermous flask reduces the transfer of energy through it.

Hence,Among the given mediums, Vaccuum is the best thermal insulator to reduce the transfer of thermal energy by radiation as there will be no air particles which carries heat from one place to other. Thus, Option (D) will be the correct option

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