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
Ksju [112]
3 years ago
9

The reason that elements in the same group all have similar chemical properties is because they all have the same

Chemistry
1 answer:
sveta [45]3 years ago
4 0
D-number of electrons in the outer energy level.
You might be interested in
What is the oxidation state of each element in the species Mn(ClO4)3?
gayaneshka [121]
The oxidation state of the compound Mn (ClO4)3 is to be determined in this problem. For oxygen, the charge is 2-, the total considering its number of atoms is -24. Mn has a charge of +3. TO compute for Mn, we must achieve zero charge overall hence 3+3x-24=0 where x is the Cl charge. Cl charge, x is +7. 
7 0
3 years ago
Read 2 more answers
35. In the collision theory, a collision that leads to the formation of products is called an
FinnZ [79.3K]

Answer:

It's Effective Collision.

Explanation:

Hope my answer has helped you!

7 0
3 years ago
which statement best describes the equation caco3 2hcl → cacl2 co2 h2o? caco3 is a reactant; it is present before the reaction o
fomenos

Answer: CaCO_3 is a reactant; it is present before the reaction occurs.

Explanation:

In a chemical reaction the chemical formulas written before the arrow are described as reactants as they react together to form products which are written after the arrow.

CaCO_3 + 2HCl \rightarrow CaCl_2 + CO_2 + H_2O

Thus CaCO_3 and HCl are reactants here whereas CO_2, CaCl_2 and H_2O are products.

7 0
3 years ago
Read 2 more answers
What is wrong with the way that the hypothesis, “Chocolate may cause pimples”, is written?
DaniilM [7]

Answer:

More sweet and cute with the little ones on the surface and a little more

8 0
3 years ago
Read 2 more answers
What is the total probability of finding a particle in a one-dimensional box in level n = 4 between x = 0 and x = L/8?
Lubov Fominskaja [6]

Answer:

P = 1/8

Explanation:

The wave function of a particle in a one-dimensional box is given by:

\psi = \sqrt \frac{2}{L} sin(\frac{n \pi x}{L})

Hence, the probability of finding the particle in the  one-dimensional box is:

P = \int_{x_{1}}^{x_{2}} \psi^{2} dx

P = \int_{x_{1}}^{x_{2}} (\sqrt \frac{2}{L} sin(\frac{n \pi x}{L}))^{2} dx

P = \frac{2}{L} \int_{x_{1}}^{x_{2}} (sin^{2}(\frac{n \pi x}{L}) dx

Evaluating the above integral from x₁ = 0 to x₂ = L/8 and solving it, we have:

P = \frac{2}{L} [\frac{L}{16} (1 - 4\frac{sin(\frac{n \pi}{4})}{n \pi})]

P = \frac{1}{8} (1 - 4\frac{sin(\frac{n \pi}{4})}{n \pi})    

Solving for n=4:

P = \frac{1}{8} (1 - 4\frac{sin(\frac{4 \pi}{4})}{4 \pi})    

P = \frac{1}{8} (1 - \frac{sin (\pi)}{\pi})    

P = \frac{1}{8}

I hope it helps you!

7 0
3 years ago
Other questions:
  • Compare and contrast acids and bases in terms of their h+ ion and oh- ion concentrations.
    13·1 answer
  • Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodi
    9·1 answer
  • Percentage of carbon in urea
    13·1 answer
  • Francine makes several measurements of the mass of a metal block. The data set is shown in the table below. Measurement Mass of
    13·2 answers
  • An element has six valence electrons available for bonding which group of the periodic table does this element most likely belon
    7·2 answers
  • Which statement about atmospheric pressure is false?
    9·2 answers
  • What is an exothermic reaction? Combustion of fuel is an exothermic process. Explain why by providing an example of a fuel. Give
    8·1 answer
  • Why agar is used as a solidifying agent in culture media instead of gelatin
    14·1 answer
  • 1. 2. LEVEL1 A. In each group, choose the objects that has the property given in brackets
    9·1 answer
  • A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the followi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!