The role of LiAlH ₄ in organic synthesis is___​

Answer:

Ask your parents about activities that you and your brother or sister can do together. ... Your brother or sister is still your sibling, so it's important to have a good relationship. Together as a family, you can figure out ways to make sure everyone is happy!

Explanation:

Take the time to talk to your brother. ...

Don't just talk about good things with your brother. ...

Be honest about how your relationship with your brother makes you feel.

Always communicate when you appreciate something your brother does.

Don't let resentments build.

Answer:

It will take 38298.5 years for 25% of its activity to disappear.

Explanation:

Given the half life = 8.3x10⁴ years = [tex]t_{\frac{1}{2} }[/tex]

We know that λ (disintegration constant) = log 2 /  [tex]t_{\frac{1}{2} }[/tex]

=> λ = log 2 / 8.3x10⁴

=> λ = 3.62 × 10⁻⁶

We know that λ = [tex]\frac{2.303}{t}[/tex] log [tex]\frac{N_{0} }{N}[/tex]

where N₀ = initial number of atoms

and N = final number of atoms

Here, N₀ = N₀ and N = 25%*N₀ = N₀/4

Let the time required for 25% of its activity to disappear be t

=>  3.62 × 10⁻⁶ = [tex]\frac{2.303}{t}[/tex] * log [tex]\frac{N_{0} }{\frac{N_{0}}{4} }[/tex]

=> 3.62 × 10⁻⁶ = [tex]\frac{2.303}{t}[/tex] * log [tex]\frac{4* N_{0} }{N_{0}}}[/tex]

=> 3.62 × 10⁻⁶ = [tex]\frac{2.303}{t}[/tex] * log 4

=> 3.62 × 10⁻⁶ = [tex]\frac{2.303}{t}[/tex] * 0.602

=> 6.01 × 10⁻⁵ = [tex]\frac{2.303}{t}[/tex]

=> t = 38298.5 years.

Therefore, it will take 38298.5 years for 25% of its activity to disappear.

Lisa is a member of Blackpink. Her birth name is Pranpriya Manoban, she later legally changed her first name to Lalisa. Her ethnicity and nationality is Thai. Lisa's biological parents' names have not been released to the public, her stepfather is Marco Bruschweiler, a swiss renowned chef, active in Thailand.

Answer: The name of her biological father is not known

Explanation: Well, Lisa's mother married Lisa’s biological father at a very young age, but they separated soon after Lisa’s birth. After that the woman re-married, and Lisa was mostly raised by her mother and stepfather.

Lisa comes from a well-funded family. The name of her biological father is not known, but Lisa was brought up mostly by a stepfather, whose name is Marco Brüschweiler.

Widely known as Master Chef Marco, Lisa’s stepfather is in his 60s. He gained popularity as the great connoisseur of Thai cuisine and author of some new culinary specialties.

He graduated from the Swiss Hotel School in 1989 and was immediately hired as a chef of Sun City Casino, situated in South Africa. After a few years there, the man returned to Bangkok and served in luxurious hotels there. He served as a chef in Switzerland, too.

Answer:

captivity

Explanation:

hope this helps you

Answer:

captivity is the correct answer