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
NikAS [45]
3 years ago
11

H-h+cl+cl____2h-cl... calculate the energy needed to break the bond​

Chemistry
1 answer:
Elenna [48]3 years ago
4 0
The energy required to break one mole of Cl - Cl bond is 242 kJ/mol
You might be interested in
A motor “runs” when what is produced by a spinning magnet ?
alex41 [277]

Answer:

electrical energy

Explanation:

its just right

7 0
3 years ago
Sodium carbonate (NaCO3) is sometimes used as a water-softening agent. Suppose that a worker prepares a 0.730 M solution of NaCO
sergey [27]

The molarity of a solution is the number of moles of a substance divided by the volume in liters prepared.

molarity=\frac{n}{V}, where n is number of moles and V is the volume in liters.

In order to calculate the mass of solute we need to convert the volume and molarity to moles

1.421 L solution \times\frac{0.0730 moles}{1 Lsolution}= 1.037 mol NaCO_3

Now that we have moles we use the relative formula mass of NaCO₃, We have 1 Na atom, 1 C atom and 3 O atoms, thus

M_r= (1\times 22.99) + (1\times 12.00) + (3\times 16.00)= 82.99g/mol

1.037 \times\frac{82.99g}{mol} = 86.1g

5 0
3 years ago
Read 2 more answers
There are seven petals on that flower.<br> O<br> qualitative<br> quantitative
Dahasolnce [82]
Hey :)


This time the answer is quantitive because the mentions numbers

Hope this helps!
3 0
3 years ago
Read 2 more answers
Which unit can be used to express the concentration of a solution?
exis [7]

Answer: (3) ppm

Explanation: Concentration is defined as the amount of solute dissolved in a known amount of the solvent or  a solution.

Parts per million (ppm) is used to express the concentration when a very small quantity of solute is present in a large quantity of the solution. It is defined as the mass of solute present in one milion (10^6) parts by mass of the solution.

ppm=\frac{\text {mass of Solute}}{\text {Mass of solution}}\times 10^6

L/s is used to express flow rate.

J/g is used to express energy per unit mass.

kPa is used to express pressure.

6 0
3 years ago
Read 2 more answers
Which of the following is an important difference between climate and weather?
ANEK [815]

A

Explanation:

Weather can be defined as the day-to-day changes in the atmospheric parameters like temperatures, humidity,  rainfall, and pressure. When these weather changes are observed for approximately over 30 years, the climate of the regions can be determined by understanding the patterns.

5 0
3 years ago
Other questions:
  • Which diatomic molecule is formed when the two atoms share six electrons
    5·2 answers
  • What do diamonds , the lead in pencils and coal have in common?
    6·1 answer
  • The salts in the sea come from
    9·1 answer
  • What must differ between the atom of two different element easy 10 POINTS
    6·1 answer
  • Which is an anion ca2+ ag+ o2- k+
    12·2 answers
  • The atomic number of an element best corresponds to which of the following?
    14·1 answer
  • 2C6H6+15O2 12CO2+6H2O<br><br> HOW MANY GRAMS OF H2O ARE EQUIVALENT TO 30 MOLES H20?
    15·1 answer
  • What are cilia?<br><br> smooth covering<br> hair like structures<br> a tail<br> all of the above
    14·1 answer
  • Please answer's these scientist answer's
    6·2 answers
  • When compared to the standard hydrogen electrode, zinc has a reduction potential of -0.762 volts and copper a reduction potentia
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!