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
Pachacha [2.7K]
2 years ago
11

What is this element?

Chemistry
1 answer:
svet-max [94.6K]2 years ago
3 0

Explanation:

sodium element with 11 electrons,11protons and 12 neutrons

You might be interested in
Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body. What is the molar
nata0808 [166]

Answer:

The molar mass of lysine using the ideal gas equation for this problem is 146.25 g/mole.

Explanation:

The ideal gas equation PV = nRT, was derived from the ABC laws (Avogadros, Boyles and Charles laws). We need to obtain the value for the number of moles n.

The parameters of this equation are:

P = 1.918 atm

V = 750.0mL = 0.75L

n = ?

R = 0.0821

T = 25 degree celcius = 25 + 273 = 298 degree kelvin.

From this formular, n = (PV)/(RT)

n = (1.918 X 0.75)/(0.0821 X 298 )

n = 0.0588

n, no of mole = mass/molar mass

0.0588 = 8.6/MM

MM = 8.6/0.0588

MM = 146.25g/mole.

4 0
3 years ago
Read 2 more answers
PLEASE ANSWER THIS QUESTION AS SOON AS POSSIBLE! 20 Pts
lidiya [134]
We have learned that all organisms have many the answers is a tiger
7 0
3 years ago
Read 2 more answers
Help pleaseeeeeeeeeeeeee!!?
melisa1 [442]

Answer:

There are 146 neutrons in Uranium-238

There are 90 electrons in Thorium-234

4 0
3 years ago
Read 2 more answers
How is iron extracted? Describe in brief​
Feliz [49]

Answer:Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as haematite contain iron(III) oxide, Fe 2O 3. The oxygen must be removed from the iron(III) oxide in order to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions.

3 0
3 years ago
Read 2 more answers
Given only the following data, what can be said about the following reaction?3H2(g) + N2(g)---> 2NH3(g) ΔH=-92kJA.) The entha
emmainna [20.7K]

Answer:

D.) Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.

Explanation:

For the reaction:

3H₂(g) + N₂(g) → 2NH₃(g)

The enthalpy change is ΔH = -92kJ

This enthalpy change is defined as the enthalpy of products - the enthalpy of reactants. As the enthalpy is <0, The enthalpy of products is <em>lower </em>than the enthalpy of reactants.

Also, it is possible to obtain the enthalpy change from the bond energies of products - bond energies of reactants, thus, The total bond energies of products are <em>lower</em> than the total bond energies of reactants.

The rate of the reaction couldn't be determined using ΔH.

As the bond energy of ammonia is lower than bonds of nitrogen and hydrogen, <em>D. Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.</em>

I hope it helps!

3 0
3 years ago
Other questions:
  • Determine the number of atoms of oxygen present in one mole of nitrogen dioxide?
    13·1 answer
  • How many covalent bonds are in a nitrogen molecule?
    10·1 answer
  • You are given a food containing 6 g protein per serving (30g), how much of the food you needto add to 100 ml solution to make a
    12·1 answer
  • Maple syrup, which comes from the sap of maple trees, is a mixture of water and natural sugars. It's a clear, brown liquid. It's
    9·1 answer
  • There are three sets of sketches below, showing the same pure molecular compound (hydrogen chloride, molecular formula ) at thre
    15·1 answer
  • The concentration of pb2+ in a solution saturated with pbbr2(s) is 2.14 ✕ 10-2 m. calculate ksp for pbbr2.
    12·2 answers
  • At 25.0 ° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 7.05 moles of Gas B. What is the total pressure?
    9·1 answer
  • How much cooking liquid is needed when employing the pasta method?
    12·2 answers
  • Trình bày sự hình thành phân tử CCl4 (lai hoá sp3)
    13·1 answer
  • HELP ITS SCIENCE PLS
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!