1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ololo11 [35]
3 years ago
5

Why is the periodic table such as useful tool for chemist?

Chemistry
1 answer:
Tomtit [17]3 years ago
3 0
The periodic table is useful tool for chemist since we can see what is the atomic and mass number for each atom.

Atomic number is equal to how many protons and electrons in it

Mass number is equal to protons + Neutrons.
You might be interested in
What elements is iodine made out of?
Thepotemich [5.8K]
Elements of iodine are fluorine, chlorine, bromine, and astatine.
8 0
4 years ago
HgS + O2 → HgO + SO2
Igoryamba

Answer:

2HgS + 3O2 → 2HgO + 2SO2

The coefficients are: 2, 3, 2, 2

Explanation:

HgS + O2 → HgO + SO2

The equation can be balance as follow:

Put 3 in front of O2 as shown below:

HgS + 3O2 → HgO + SO2

Now we can see that there are 6 atoms of O on the left side of the equation and a total of 3 atoms on the right side. It can be balance by putting 2 in front of HgO and SO2 as shown below:

HgS + 3O2 → 2HgO + 2SO2

Now we have 2 atoms of both Hg and S on the right side and 1atom each on the left. It can be balance by putting 2 in front of HgS as shown below:

2HgS + 3O2 → 2HgO + 2SO2

Now the equation is balanced.

The coefficients are: 2, 3, 2, 2

The law of conservation of mass(matter) states that matter(mass) can neither be created nor destroyed during a chemical reaction but changes from one form to another. An unbalanced equation suggests that matter has been created or destroyed. While a balanced equation proofs that matter can never be created but changes to different form. This is the more reason we have count the atoms of an element on both side of the equation to see if they are balanced irrespective of the new form they assume in the product

5 0
3 years ago
At which condition will the entropy of a pure solid be zero?
miss Akunina [59]
The condition at which the entropy of a pure solid will be zero is<span> when a substance is at absolute zero. Absolute zero is </span><span>the lowest temperature that is theoretically possible, at which the motion of particles which constitutes heat would be minimal. It is zero on the Kelvin scale, equivalent to −273.15°C.</span>
5 0
3 years ago
Read 2 more answers
In which state of matter is there no particle movement
Alex
Salutations!

In which state of matter is there no particle movement

Solid is the state of matter that has no particle movement. Solid is tightly packed, rigid, and does not takes the shape of the container. The only movement that they have is the vibration movement, otherwise, it is still and has no particle movement.

Hope I helped (:

Have a great day!
8 0
3 years ago
The following reaction is part of the electron transport chain. Complete the reaction and identify which species is reduced. The
Olegator [25]

Answer:

FADH_2 + Q --> FAD + QH_2

The reactant that is reduced is FADH_2

Explanation:

The complete equation is as below:

FADH_2 + Q --> FAD + QH_2

<em>Recall that oxidation involves the gain of electrons while reduction involves the loss of electrons.</em>

In the above reaction, FADH_2 loses electrons to coenzyme Q and becomes reduced to FAD, hence the oxidizing agent. Coenzyme Q gains electrons and becomes oxidized to QH_2 , hence the reducing agent.

<u>In order words, </u>FADH_2<u> is reduced while coenzyme Q is oxidized.</u>

4 0
4 years ago
Other questions:
  • What does the acronym VSEPR represent?
    11·2 answers
  • What would cause the equilibrium to shift left in this reaction? CO + 3H2 ? CH4 + H2O A. Adding heat to the product mixture B. A
    7·2 answers
  • Which term refuses to the structure that forms the surface of a cell, separating it's contents from the outside world
    6·1 answer
  • How many neutrons are in Cesium-130 (Cs)?<br><br> 55<br> 75<br> 130<br> 185
    14·1 answer
  • PLEASE HELP URGENT ( photo included)
    9·1 answer
  • Question 3 Unsaved
    9·1 answer
  • Sprinter set in starting blocks at the beginning of a race rely on what kind of energy conversion
    11·1 answer
  • What is the missing word. Please Help Me. Thank you!!
    13·2 answers
  • Identify the following changes as physical or chemical. A loaf of risen but unbaked bread. Photo by Elinor D Bread dough rising:
    7·1 answer
  • How many isomers does propane have?<br> 01<br> 02<br> 03<br> 05
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!