What is the name ?

Organic Chemsitry

Answer:

Where are these Chambers located ], there is hundreds of them in the world

Answer:

33.6 lliter

Explanation:

volume in stp = no of moles *22.4

=22.4* 1.5=33.6liter

Answer:

LiBr

Explanation:

Group 1 metals give a characteristic colour when subjected to flame test. The colour can tell us exactly what the identity of metal being studied.

Now, Lithium metal gives a red flame. Hence the group 1 metal ion is Li^+. Similarly, bromides give a creamy precipitate when reacted with silver nitrate.

This means that the solid substance under study is LiBr.

Answer:

5.5 moles of sodium are produced

Explanation:

Given data:

Number of moles of hydrogen = 2.75 mol

Number of moles of Na produced = ?

Solution:

Chemical equation:

H₂ + 2NaCl      →       2HCl + 2Na

Now we will compare the moles of hydrogen and sodium from balance chemical equation:

                    H₂         :       Na

                     1          :       2

                   2.75      :       2/1×2.75 = 5.5 mol

Thus, 5.5 moles of sodium are produced.

Answer:

D

Explanation:

Answer:

The vertical columns of the periodic table are called groups, or families. The significance is elements with similar properties are placed in the same vertical columns. The horizontal rows of the periodic table are called periods. The significance is that properties vary from left to right along the rows.

Explanation:

We just did this in science

Answer:

columns in the periodic table are reffered to as "periods". periods represent elements with the same number of shells i.e all elements in period 1 have 1 shell (k shell) and vice versa.

Answer:

Comets are made of ice, dust, and rocky material. Asteroids are made of rock and metal material.

Explanation:

thats how they are different from each other

Answer:

Si

Explanation:

Dispersion force or London force is the force of attraction between two atoms or molecules in a substance in solid , liquid and gas . In gas , this force is minimum and in solid this force is maximum . In solid this force is maximum in metals in which this force forms  metallic bond .

Among the given substances , Si , Sn , MgO , C₂₀H₄₂ are solid , so dispersion force will be high in them .

Among all as mentioned above , Si will have highest dispersion force . It is due to four covalent bond that bind two atoms of Si in solid silicon . Its three dimensional crystal structure consist of silicon atoms , all bound by four covalent bonds .

Answer:

..

Explanation:

Answer:

Simply cuz so u can drink It without bacteries chlorine also changes a bit taste depends on RM

!Do not use this answer for cheating, please only use my answers to check your own!

Before tap water was found, people would use rocks, gravel, and sometimes even thick cloth to filter water. If you do not filter water, there is a huge chance that bugs, bacteria, viruses, and other things may be entering your body. Today some houses still have the past was of filtering, with rocks and gravel. Except chlorine is used to kill any bacteria that was left over the rocks and gravel may of missed.

Answer:

The heliocentric theory was better supported by data explaining the rotation of the planets and other bodies in the solar system.

Explanation:

Answer:

In a chemical reaction, only the atoms present in the reactants can end up in the products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Molarity = 0.053 M

pH = 1.276

Given

5 g of HNO₃

1.5 L solution

Required

Molarity

pH

Solution

Molarity shows the number of moles of solute in every 1 liter of solution.

mol HNO₃(MW=63 g/mol) :

= mass : MW

= 5 g : 63 g/mol

= 0.079

Molarity :

=0.079 : 1.5 L

= 0.053 M

pH = -log [H⁺]

For strong acids like HNO₃ :

[H⁺] = a.M

a = valence of acid / amount of H⁺ released  

M = acid concentration.  

HNO₃ ⇒ H⁺ + NO₃⁻⇒ valence 1(amount of H⁺=1)

[H⁺]=1 x 0.053

[H⁺]= 0.053 M

pH= - log 5.3 x 10⁻²

pH = 2 - log 5.3

pH= 1.276

Answer:473.39626 g/mol

Explanation:

Answer:

153.82 g/mol

Explanation:

Answer:

William Crookes????????????????

Answer:

Reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume)

Explanation:

Answer:

A measure of how fast products are made in a reaction.

Explanation:

i just took the test and it gave me this cuz the other person was wrong

Explanation:

The valence electrons within an atom is the number of electrons in its outermost shell.

These electrons are used by an atom to react with one another. They  determine the extent to which an atom is ready to combine either by losing, gaining or sharing these electrons.

Answer:

The music was played at an natural frequency of the drums

Explanation:

The natural frequency of a body is the frequency when we notice that the system oscillates without any driving or damping force. This is also referred to as the normal mode of vibration because all parts of the system move sinusoidally at the same frequency.

So, when music is played at the natural frequency of the drums, the drums tends to vibrate without any driving force. We can now say that the drums are 'playing themselves'.

Answer:

false

Explanation:

Atoms of the same element that differ in their numbers of neutrons are called isotopes. Many isotopes occur naturally. ... Different isotopes of an element generally have the same physical and chemical properties because they have the same numbers of protons and elec

Answer:

False

Explanation:

It says that it may not have the same physical properties but it always have the same physical properties.

Answer:

C₈H₁₈ + 25/2O₂ —> 8CO₂ + 9H₂O

2C₈H₁₈ + 25O₂ —> 16CO₂ + 18H₂O

Explanation:

The reaction above is simply termed combustion reaction in which an organic compound react with oxygen to produce carbon dioxide and water. Thus, we can obtain the balanced equation for the reaction reaction as follow:

C₈H₁₈ + O₂ —> CO₂ + H₂O

There are 8 atoms of C on the left side and 1 atom on the right side. It can be balance by writing 8 before CO₂ as shown below:

C₈H₁₈ + O₂ —> 8CO₂ + H₂O

There are 18 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 9 before H₂O as shown below:

C₈H₁₈ + O₂ —> 8CO₂ + 9H₂O

There are 2 atoms of O on the left side and a total of 25 atoms on the right side. It can be balance by writing 25/2 before O₂ as shown below:

C₈H₁₈ + 25/2O₂ —> 8CO₂ + 9H₂O

Thus, the equation is balanced!

The above equation can also be written as follow:

C₈H₁₈ + 25/2O₂ —> 8CO₂ + 9H₂O

Multiply through by 2

2C₈H₁₈ + 25O₂ —> 16CO₂ + 18H₂O

Answer:

answer

Explanation:

simile is a figure of speech that compares two different things in an interesting way. The object of a simile is to spark an interesting connection in a reader's or listener's mind. A simile is one of the most common forms of figurative language. Examples of similes can be found just about anywhere from poems to song lyrics and even in everyday conversations.

Similes and metaphors are often confused with one another. The main difference between a simile and metaphor is that a simile uses the words "like" or "as" to draw a comparison and a metaphor simply states the comparison without using "like" or "as".

An example of a simile is: She is as innocent as an angel. An example of a metaphor is: She is an angel. Do you see the difference? The simile makes a direct comparison, the metaphor's comparison is implied but not stated.

Answer:

5 point) Chemists used systems and order because they study the basic unit of all forms of matter, which is the atom . However, there are several different kinds of atoms, called elements . Chemists organize these elements using the periodic table .

Explanation: