3 years ago

What are three elements that have similar chemical properties to oxygen

Chemistry

1 answer:

jok3333 [9.3K]3 years ago

4 0

Sulfur, selenium, and tellurium

You might be interested in

Salt dissolving in water is a physical change. (2 points) True False

nydimaria [60]

Answer:

i believe its true

Explanation:

5 0

3 years ago

Determine how many moles of O2 are required to react completely with 6.7 moles C6H14.

Mice21 [21]

I think *extra stress on the word think lol* it's 6.7 moles of O₂.
unless you have the full formula, giving me the amount of moles in C₆H₁₄ and O₂.

hopefully this helps. :/

8 0

4 years ago

How could natural selection lead to speciation?

Harlamova29_29 [7]

Answer:

Speciation can be driven by evolution, which is a process that results in the accumulation of many small genetic changes called mutations in a population over a long period of time. ... Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.

I hope it's helpful!

6 0

3 years ago

Using the Rydberg formula, calculate the initial energy level when an electron in a hydrogen atom transitions into n= 2 and emit

EleoNora [17]

Answer:

Explanation:

Using the Rydberg formula as:

$\frac {1}{\lambda}=R_H\times Z^2\times (\frac {1}{n_{1}^2}-\frac {1}{n_{2}^2})$

where,

λ is wavelength of photon

R = Rydberg's constant (1.097 × 10⁷ m⁻¹)

Z = atomic number of atom

n₁ is the initial final level and n₂ is the final energy level

For Hydrogen atom, Z= 1

n₂ = 2

Wavelength = 410.1 nm

Also,

1 nm = 10⁻⁹ m

So,

Wavelength = 410.1 × 10⁻⁹ m

Applying in the formula as:

$\frac {1}{410.1\times 10^{-9}}=1.097\times 10^7\times 1^2\times (\frac {1}{n_{1}^2}-\frac {1}{2^2})$

Solving for n₁ , we get

n₁ ≅ 1

3 0

4 years ago

Read 2 more answers

The oxidation number of magnesium in magnesium chloride is _____.

LenaWriter [7]

I hope this would be able to help u
dont forget the symbol its +2

3 0

3 years ago