chemical properties of sodium

Answers

Answer 1

Answer:

Density 0.97 g.cm -3 at 20 °C

Melting point 97.5 °C

Boiling point 883 °C

oxidation states +1, −1 (rare)

Explanation:

Have a nice day


Related Questions

how does the solubility of oxygen in water affect the value of r you determined?

Answers

Answer:

R, the gas law constant, is a constant,

Solubility of gas is inversely proportional to temperature.

Solubility of gas ∝ 1/Temperature

That means as temperature increases the solubility gas goes on decreasing and vice versa.

But R is inversely proportional to temperature .

So Solubility ∝ R. (1/T ∝ R)

That means solubility of gas goes on increasing as R increases.

Step 2: Result

Result:

So from above conclusion the solubility of Oxygen in water increases that result into increasing R value.

Explanation:

What is the type of potential energy that develops as the object changes shape

Answers

Answer:

The answer is Elastic Potential Energy

N2 + O2 → N205
how do i show my work im trying to balance the equation

Answers

Answer:

2N2 + 3O2 –2N2O3 this what I got balancing though

the protein’s specific sequence is?

Answers

Answer:

The linear sequence of amino acids within a protein is considered the primary structure of the protein. Proteins are built from a set of only twenty amino acids, each of which has a unique side chain. The side chains of amino acids have different chemistries.

Hope this helps

Which of the following moves away from the central nervous system?
Afferent Neuron
Efferent Neuron
Proxima Neuron
Distal Neuron

Answers

Answer:

distal

Explanation:

you c a n remember that by the word distance

Distal Neuron would be correct

Explain The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine its percent isotopic step by step please urgently

Answers

Answer:

%Li-6 = 5.996% & %Li-7 = 94.004%

Explanation:

let X₁ = Li-6 & X₂ = Li-7 where Xₙ = mole fraction

X₁ + X₂ = 1 => X₁ = 1 - X₂

6·X₁ + 7·X₂ = 6.94004

=> 6(1 - X₂) + 7·X₂ = 6.94004

=> 6 - 6·X₂ + 7·X₂ = 6.94004

=> 6 + X₂ = 6.94004

X₂ = 6.94004 - 6 = 0.94004 => %X₂ = %Li-7 = 94.004%

X₁ = 1.00000 - 0.94004 = 0.05996 => %X₁ = %Li-6 = 5.996%

write a ground state electron configuration for each neutral atom

Pb
Sr
U
N
Ag
Ti
Ce
CI
Hg

please help me​

Answers

Answer:

Pb[lead] [Xe]4f^145d^106s^26p^2

U[uranium] 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4e^14 5d^10 6p^6

7s^2 5f^4

This notation can be written in core notation or noble gas notation by replacing the

1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4e^14 5d^10 6p^6

7s^2 5f^4

with the noble gas [Rn].

[Rn]7s25f4

N[nitrogen] The full electron configuration for nitrogen is 1s^2 2s^2 2p^3.

Ti[titanium] Ti2+:[Ar]3d^2

Ti:1s^2 2s^2 2p^6 3s^2 3p^6 3d^2 4s^2

1s^2 2s^2 2p^6 3s^2 3p^5 = 17 electrons

(1) electron gain will result to a

negative charge (−), and

(2) electron loss will result to a positive charge (+),

1s^2 2s^2 2p^6 3s^2 3p^6 = 18 electrons

Hg[mercury] You should then find its atomic number is 80. It has a Xe core, so in shorthand notation, you can include [Xe]instead of

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 5s^2 5p^6,

for 54 electrons. For the 6th row of the periodic table, we introduce the 4f orbitals, and proceed to atoms having occupied 5d orbitals. We, as usual, have the ns orbitals, and n=? for the 6th period?

Mercury has a regular electron configuration. It becomes:

[Xe]4f145d106s2

Explanation:

socratic.org helped me! I'm really sorry if this is wrong!

An alkyne with the molecular formula C5H8 was reduced with H2 and Lindlar's catalyst. Hydroboration-oxidation of the resulting alkene afforded a primary alcohol. What is the IUPAC name of the alkyne starting material

Answers

Since the addition of the H2O in the last step of hydroboration is anti-Markovnikov, the starting material is 1-pentyne.

The addition of H2 to C5H8 yields an alkene when a Lindlar catalyst is used. Recall that the Lindlar catalysts poisons the process so that the addition do not go on to produce an alkane.

When hydroboration is carried out on the alkene, we are told that a primary alcohol was obtained. We must note that in the last step of hydroboration, water is added in an anti- Markovnikov manner to yield the primary alcohol. Hence, the starting material must be 1-pentyne as shown in the image attached.

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why are there no elementary substances that have the ionic bond?

Answers

This problem is asking for the reason behind the nonexistence of elementary substances with ionic bonds. First of all, it is necessary to bear to mind that the definition of the type of bond in a compound depends on the difference electronegativity that is present between two of the atoms composing it.

For instance, in binary salts, such as KCl, NaCl, KBr and so on, we are able to know these are all ionic because they are composed by a metal and a nonmetal, which have the smallest and largest electronegativities, so that the difference electronegativity is large enough to produce an ionic bond.

In contrast, elementary susbtances, such as liquid bromine (Br2) and gases such as H2, N2, Cl2, F2 and O2, since they are all nonmetals and the same type, the electronegativity difference will be 0 and therefore, they will not be ionic but covalent.

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What change will occur if liquid gallium is removed from a hand​

Answers

Answer:

Gallium's melting point is low enough that it can be melted in the human hand and then refrozen if the hand is removed. The liquid metal has a significant propensity to supercool below its melting/freezing points when exposed to high temperatures.

Explanation:

Hope it helps:)

galliums melting point is pretty low

Count the following atoms​
NEED ANSWER ASAP

Answers

Answer:

2x(hn)po

Explanation:

Use the community property to reorder the terms

Remove the unnecessary parentheses

2hnpo

2hnop

use the community property to reorder the terms

2hnop

How does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed?

А. the value of q is negative
B. the value of q is positive
C. the value of q remains constant OD. the value of a decreases
E. the value of q equals zero ​

Answers

Answer:

the value of q is negative

why does C10H22 not conduct electricity

Answers

Answer:

Decane doesn't have any free electrons because all the electrons of carbon is used for bonding.

What type of flower structures do you see in a ovary in a flower

Answers

Answer:

The ovary contains ovules

Explanation:

Ovules is a structure you see in a ovary flower

What does the number 84 in the name krypton-84 represent?
the atomic number
the mass number

Answers

Answer:

The Atomic number

Explanation:

Mark brainliest please

Put the substance in a 25 mL beaker.
Now, observe and record the following:
state of matter:
appearance and texture:
crystalline structure:

Answers

Answer:

liquid no not a solid

Explanation:

When you put the substance in a 25 mL beaker. then the state of matter is solid, appearance and texture are powdered and crystalline structure is not solid(powder).

What are crystalline structures and states of matter?

The term "crystalline structure" refers to the arrangement of atoms, ions, or molecules in a crystalline solid. A crystalline solid is a type of material where the constituent particles are arranged in a regular, repeating pattern. This regular arrangement results in a characteristic geometric shape for the crystals. Examples of crystalline solids include salt, sugar, and diamond.

On the other hand, the term "state of matter" refers to the physical form in which matter exists. There are three primary states of matter: solid, liquid, and gas.

Solids have a definite shape and volume and their constituent particles are held tightly together by strong intermolecular forces.

Liquids have a definite volume but no definite shape, and their constituent particles are held together by weaker intermolecular forces.

Gases have no definite shape or volume, and their constituent particles are far apart and move freely.

Other states of matter, such as plasma and Bose-Einstein condensate, also exist but they are less common in everyday life.

Therefore, the state of matter: is solid, its appearance and texture: are powdered, and the crystalline structure: is not solid.

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Antoine Lavoisier was able to show that mass wasn't lost or destroyed during chemical reactions by weighing all of the matter in the system before and after reactions occurred. What questions would you ask Lavoisier about how he conducted his investigations?​

Answers

Answer: we can ask simple qs like was it a fair experiment and what he was actually looking for. Other qs include his variables use and that how he has maintained the experiment. Finally we could ask him for his outcome and what it would ahve changed in the near future

Explanation:

Which of the following requires the most input of energy?



Ovaporizing a substance

O melting a substance

O decreasing the temperature of the substance by 1°C

O raising the temperature of the substance by 1°C​

Answers

Answer:

D ✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

what are valence electrons? why are they so important in chemistry?​

Answers

Answer:

Valence electrons are negatively charged particles located in the outermost shell of atoms that can be transferred or shared with other atoms. Valence electrons are important in chemistry because the number of valence electrons in a particular atom can be used to determine how the atom will react chemically with other atoms.

Magnesium (24.30) reacts with hydrogen chloride (X g) to produce hydrogen gas (2.04 g) and magnesium chloride (96.90 g). How much hydrogen chloride was used in the reaction?

Round your answer to the second decimal.

Answers

Answer:

Hydrogen Chloride is 74.64 grams.

Explanation:

Using the given information, we can find the amount of grams of hydrogen chloride that take place in the reaction.

24.30 grams of Magnesium"x" grams of Hydrogen chloride2.04 grams hydrogen gas96.90 grams of magnesium chloride.

Due to the Law of Conservation of Mass, the mass of the system must remain constant. To find the value of x, make the equation below.

[tex]24.30 + x=2.04 + 96.90[/tex]

The left side represent the reactant side of the chemical reaction and the right side represents the product side.

[tex]2.04 + 96.90= 98.94[/tex]

[tex]24.30+x=98.94[/tex]

[tex]24.30 - 24.30 + x= 98.94 - 24.30[/tex]

[tex]x=74.64[/tex]

What makes a balloon electrically charged?

A. Adding more air to the balloon
B. Placing the balloon against a wall
C. Rubbing the balloon against your hair
D. Running water over the balloon

Answers

C. Rubbing the balloon against your hair

Answer:

C

Explanation:

running the balloon against your hair

What is a plan in science for a 6 QWC question?

Answers

Answer:

the plan is:

Explanation:

How does the bear help Atalanta?

Select 3 correct answer(s)
Question 2 options:

The bear brings Atalanta to shelter.


The bear guards and protects Atalanta.


The bear brings Atalanta food.


The bear teaches Atalanta to hunt.

Answers

your answers are:

B) The bear guards and protects Atalanta

C) The bear brings Atalanta food

D) The bear teaches Atalanta to hunt

Brainliest?

why can't plants photosynthesise in winter and drought​

Answers

Answer:

Because there is no water and they restore their food.

Explanation:

Like their glucose and that's why they also the leaf changes color

Look at the three kinds of houses shown in the simulation. Which house do you think will best resist damage from a tsunami? Which house will suffer the most damage from a tsunami? Do you think any of the houses will survive a large tsunami? Write down your predictions.

Answers

Answer:

The brick house will best resist damage from a tsunami, and the straw house will suffer the most damage from a tsunami. I predict these reasons because brick has a stronger material than the rest of the houses, while the straw house has the weakest material than the rest of the houses. No, I do not think any of the houses can survive a massive tsunami because if the tsunami was 22 feet tall, the brick house would become damaged due to the lack of support. And, the other houses can't take a tsunami higher than 10 feet. The brick house can only take tsunamis less than 20 feet.

Explanation:

Try that

What is responsible for the unusual chemical properties of water?

Answers

Answer:

hydrogen bonds

Explanation:

pls choose it as brianliest

The unusual chemical properties of water is due to its polar covalent bond.

What is polar covalent bond ?

When atoms with differing electronegativities are shared between two atoms in such a covalent link, the result would be a polar covalent bond.

What is water ?

Water is a kind of mixture of hydrogen and oxygen . Its chemical formula will be [tex]H_{2}O[/tex].

Along with its polar covalent connections, water displays a variety of interesting features. Because oxygen has a higher electronegativity than hydrogen, electron pairs were drawn closer to the oxygen atom, causing it to be partially negatively charged. As a result, both hydrogen atoms acquire a slightly positive charge.

Therefore, polar covalent bond will be responsible for unusual chemical properties of water.

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which electron carrier is not mobile or diffusible in the mitochondrial electron transport chain?

Answers

Answer:

FAD is the correct answer

Explanation:

pls choose it as the brainiest answer

 

What mass of silver can be plated onto an object in 33. 5 minutes at 8. 70 A of current? Ag (aq) e- → Ag(s).

Answers

Answer:

need points sorry

Explanation:

Which process releases heat?
O A. Sanding wood
O B. Baking bread
O C. Burning gasoline
O D. Frying french fries​

Answers

Answer:

C

Explanation:

burning gasoline i think pls can i have brainliest if right!

Answer:French fries

Explanation:

An element has 3 electrons, 3 protons and 4 neutrons. What will be its atomic number and mass number? (​

Answers

Answer:

its atomic number will be 3 and it's mass number will be 7. it is lithium

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