Tips for Macrob

[Yan035]

lead and zinc are metals, which contain free moving electrons. they are conductive.
Potassium nitrate and salts have ionic bond. This means when they dissolve into water they will form ions which are also conductive.
Sugar and wax are kind of organic and they have covalent bonds. they don't form ions in water, so they are not conductive.
Deionised water, from its name you can tell there are no ions, so not conductive.

[Phoenix11]

Thank you so much Shadowxo and Yan035!
Your information really helped me understand.
I really appreciate it.
 

[Phoenix11]

Hi!
I just wanted to ask a quick question. Why can't the bases of logarithms be negative?

For example, in the form, log_ab why doesn't log_-2-8=3?

Thank you so much.
 

[Shadowxo]

Hi!
I just wanted to ask a quick question. Why can't the bases of logarithms be negative?

For example, in the form, log_ab why doesn't log_-2-8=3?

Thank you so much.
 

It's basically because it's not continuous

So we can't draw a proper graph for a negative base, and can't manipulate it well. If it's positive, it's continuous and we can use the rules relating to bases.
In theory we could say log_-2-8=3 but we couldn't do much with it. Like, what does log_-22 equal? Whereas for positive bases, we can use it to find a variety of non-integer values on a continuous scale

Sorry if it doesn't make much sense but hope this helps anyway

[Phoenix11]

Thank you so much!
So basically it's because it's not continuous, right?
If that's so,  I understand.
 

[Shadowxo]

Thank you so much!
So basically it's because it's not continuous, right?
If that's so,  I understand.
 

Yea, basically

[Phoenix11]

Cool,  thank you!
 

[Phoenix11]

Hi.
I was wondering how acetone would be displayed using the dot cross diagram (not the Lewis diagram).
 
Thank you.

[Natasha.97]

Hi.
I was wondering how acetone would be displayed using the dot cross diagram (not the Lewis diagram).
 
Thank you.

Hi

[Phoenix11]

Thank you so much Jess1113
This helped heaps.
 

[Phoenix11]

Hello again.
I was wondering if anyone knew how to solve log₃⁷√81 so that the answer is in fractional form?

Thank you so much!

[Shadowxo]

Hello again.
I was wondering if anyone knew how to solve log₃⁷√81 so that the answer is in fractional form?

Thank you so much!

Just need to do a bit of manipulation

[Natasha.97]

Hi



Hope this helps

Shadowxo beat me to it by 16 seconds :3

[Phoenix11]

Thank you so much you guys!
Now I can finish the exercise!
 

[Phoenix11]

Hello guys!
How has your day been so far?

I was wondering if anyone knew why the answer to this question was n+1?

What is the maximum number of terms in a polynomial of degree n?

Thank you so much!