Answers by visitors named: Derrick

I understand

15 years ago

The noble gas in period 1 is not Hydrogen, so it would be Helium He. Sir, can you also take a look at my "Damon" post.

15 years ago

I mean 12 atoms.

15 years ago

13?

15 years ago

Thanks for the clarification

15 years ago

Thank you both very much for your assistance

15 years ago

Thank you sir

15 years ago

Thank you very much sir

15 years ago

The part I don't get is the atom part. That wording is just so complicated. "One atom of each of the elements in the second period"

15 years ago

Thank you very much sir

15 years ago

C) H3PO3 + Ca(OH)2 = H3PO3 + 3CaOH2 Reactants: Phosphic acid, Calcium hydroxide Products: Calcium phosphate, water Could you provide me an example of what you mean by that rule. I sort of understand, but an example would be better.

15 years ago

E) H2SO4 + NaOH = H2SO4+ 2NaOH --> 2H2O + Na2SO4 About the last 2 in Na2SO4, It should be a coefficient right? Not a subscript. Reactants: Sulphic acid, sodium hydroxide Products: Sodium sulphate, water

15 years ago

DrBob222 you have no clue how much you taught me in one day. Thank You so so much for this help of yours. How can I ever thank you.

15 years ago

I forgot to mention some parts. Each reaction below has been identified by type. Use this information to help predict products. Copy and then complete each equation by writing the products of the reactions. Remember to include subscripts and parentheses w...

15 years ago

They've given me the reaction type themselves, it was in the book. Also can you please stay on this site and provide me with help.

15 years ago

I'll try to write quickly and post what I've done on here, but please sir stay.

15 years ago

A) Al + F2 --> Synthesis Products: 2 molecules of aluminum fluoride 2Al + 3F2 --> 2AlF3 B) K+O2 --> Synthesis Products: 2 molecules of Potassium oxide 4K + O2 --> 2K2O C) C2H6+O2 --> Combustion Products: Carbon dioxide, water C2H6 + 4O2 --> 2CO2 + 3H2O D)...

15 years ago

C) C2H6+O2 --> Combustion Products: 2 molecules of Carbon dioxide, 3 molecules of water C2H6 + 4O2 --> 2CO2 + 3H2O D) C6H12O4 + O2--> Combustion Products: 6 molecules of Carbon dioxide, 6 molecules of water C6H12O4 + 7O2 --> 6CO2 + 6H2O sorry I forgot to...

15 years ago

The decomposition is a bit harder for me than the rest. I looked over the examples in my book tons of times, but I still don't get it. Rb2O --> Decomposition Rb + O2 I don't know what to do rest.

15 years ago

BaCl2 + Pb(NO3)2 Could you also show me how to do the double replacement thing. The obly reactions I am getting how to do are synthesis and combustion. I need to practise alot on the other ones. Could you please show me step by step how you balance this e...

15 years ago

DrBob222 I also want to ask you something which was confusing me like a nightmare all that time, and today I realized it. For ex. C6H12O4 + 7O2 --> 6CO2 + 6H2O This equation here is balanced. But on the right side the coefficients 6 and 6 equal up to 12,...

15 years ago

Also for this equation: BaCl2 + Pb(NO3)2 I know that there is an invisible 1 infront of Ba, and that Cl is 2, but say if there wasn't that 2 there, then would there be an invisible 1 coeffient infront of Cl?

15 years ago

Thank you very much DrBob222, if I ever get stuck again, I'll be sure to ask you, but before that I'll try to figure out the problems myself as a challenge. Thank you

15 years ago

Thank you very much sir for your assistance.

15 years ago

Sorry I wasn't finished posting, I accidentally pressed enter and it ended up posting. I don't get how to solve the half-life qquestion. My other questions are... The half-life of a particular radioactibe isotope is 6 hours. What percent of the daughter i...

15 years ago

Oh my, I only wanted to submit one post, so sorry about that.

15 years ago

The 2 posts above can be erased.

15 years ago

Thank you very much sir for your assistance.

15 years ago

A jumbo jet taxiing down the runway receives word that it must return to the gate to pick up an important passenger who was late to his connecting flight. The jet is traveling at 45.0 m/s when the pilot receives the message. What is the acceleration of th...

15 years ago

Ok,Thanks cause I wasn't sure with them

13 years ago

8/12 I mean

13 years ago

Yes

13 years ago

Can you help me with my math questions below?

13 years ago

Whats the 2 for on A = 2(11 * 8) and A = 2 (13 * 8) ?

13 years ago

* means to divide?

13 years ago

I got #1 for number 3 is the answer $202? I multiplied 14 and 3 and 80 and 2 then I added the product and got 202

13 years ago

Mrs.Nelson bought 3 boxes of cereal for her 2 children. Each box contains 24 ounces of cereal and the children eat cereal every day. What information is needed to find the approximate number of days the cereal will last? A.The amount of time 2 the 2 child...

13 years ago

Life is full of choices, so I must learn to make good ones.

13 years ago

Pure water is added to 25.0 mL of a 1.00 M HCL solution. The new solution has a volume of 2.00 L. What is the pH of the new solution.

13 years ago

I had developed a formula which works but, not always.All you need is to get four current event.search on face book.

13 years ago

Greenland?

13 years ago

Hudson Bay?

13 years ago

23 degrees north latitude 90 degrees west longitude china?

13 years ago

Gulf of mexico

13 years ago

Africa then? :)

13 years ago

The first one I think is actually B

13 years ago

Nevermind I got all the questions. A D D B

13 years ago

Answer 4(3+2)+2(16/4) A.88 B.44 C.32 D.28 D?

13 years ago

hey lily sup luv u girl

12 years ago

60/12=5cents per inch. 5*23=Xcents

12 years ago

on a.) it should be 1/2mV^2=1/2kx^2, however whenever I do this problem on my homework I get it wrong. Im not sure why.

12 years ago

3*5

12 years ago

Thank you!

10 years ago

the correct form is comen

9 years ago

the answer is 2 and 9/10

9 years ago

14. -9 16. -12 18. 16 22. -9

9 years ago

Zinc - .5 grams HCl- .2 moles Find the Mass of ZnCl2

9 years ago

Since each he can cut it into thirds, he can make 3 from each foot. Also he has nine feet, so the equation would be 9*3=27. He can make 27 bookmarks.

9 years ago

Yes, I got the same answers as well.

9 years ago

Importance of uniformity of tablets in pharmacy

9 years ago

.0134 .802 .47 .0562 .137

8 years ago

The answer actually comes out to roughly 0.034

3 years ago

(15.0 C/s) ((180 min) (60 s/min)) = 162000 C (162000 C) / (96485 C/mol e-) = 1.67 mol e- Cr2(SO4)3 ---> 2Cr^3+ + 3SO4^2- This reaction shows that for chromium we are transferring 3 moles of electrons. (1.67 mol e-) (mol Cr / 3 mol e- transferred) = 0.559...

3 years ago

3x-3y

2 years ago