Chemistry

If a strip of Ni were dipped into a solution of AgNO3, what wuold be expected to occur

If a strip of Ni were dipped into a solution of AgNO3, what wuold be expected to occur? Explain, using E^0 values.-we expect that Ni will oxidize to Ni+2 while Ag+ is reduced to Ag metal from http://

CHEM QUESTIONS NEED TO BE ANSWERED NOW

PLEASE DONT BE INTIMIDATED BY HOW LONG THIS IS! JUST ANSWER THE MOST YOU CAN :) These are chapter 19 Review Questions in Modern Chemistry Texbook: 22. If a strip of Ni were dipped into a solution of A

Atomic Radius Question

Which element has the largest atomic radius: Br, K, Mg, or Na....please dont just answer please explain why i want to learn!! thanks-Well, atomic radius increases from right to left and top to bottom.

Calculate the E Cell

I need help figuring this question out... Calculate the E Cell Hg^2++Cu^2+-Well, the information provided in this question is rather incomplete. So, ill make the Cell as per my choice and show you h

What is the chemical formula for these ionic compounds

Silver iodide Aluminium hydroxide Potassium sulphate Calcium phosphate and Hydrogen carbonate Thanx to everyone in advance.....I have no idea!!Thank you....I know it is really basic but my brain has

How many mL of a 0.4 N Ca(OH)2 solution should be added to a 250 mL flask to make 250 mL of a 0.1 M Ca(OH)2 so

How many mL of a 0.4 N Ca(OH)2 solution should be added to a 250 mL flask to make 250 mL of a 0.1 M Ca(OH)2 solution? 1. 50 mL2. 250 mL3. 500 mL4. 125 mL 5. 100 mL 6. 1000 mL-125ML

Need help solving chemistry question!

Cesium-137 undergoes beta decay and has a half life of 30 years. How many beta particles are emitted by a 14.0 gram sample of cesium-137 in three minutes?-14g of Cesium-137 contains 14/137 moles of Ce

How would you Prepare 1 liter of 1.00 M NaCl solution

First calculate the molar mass of NaCl which is the mass of a mole of Na plus the mass of a mole of Cl or 22.99 + 35.45 = 58.44 g/mol Weigh out 58.44 g NaCl.Place the NaCl in a 1 liter volumetric flas

What is the use if boric acid

The uses are:(H3BO3) 1.It is used as an eyewash. 2.It is also used as an antiseptic.-we can use boric acid while we are playing caroms. it reduces the friction on the board.-You can make green fire wi

What do people us Hydrogen for

What do we as humans use Hydrogen for? Anything in particular that we might us everyday? Or just in the environment what is it used for?-Well there is just a little bit in our air, we actually breathe

Help With some Chemistry

If someone could please help me with these few Chemistry Question It would really help me!! 1) An atom with a mass number of 80, and an atomic number of 35 has: A) 35 protons, and 35 neutrons B) 35

After four half-lives of a radioactive substance, you have 2.0 g left. How much material did you start with

2.0 g 8.0 g 16.0 g 32.0 g-m * (1/2)^4 = 2.0 g m = (2.0 g) * 2^4 q

How do I do this stoichiometry problem

(Part 1 of 3) If 5.96 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 −> CO2 + H2O, how much oxygen is required? Answer in units of mol. (Part 2 of 3) How m

What is chemical formula for these onic compounds

Silver iodide Aluminium hydroxide Potassium sulphate Calcium phosphate Hydrogen carbonate Thanx everyone in advance....I am so stuck even though they are really basic....Thanx-use a formula sheet on

How do the ions is Na2CO3 separate in an aqueous solution

(the numbers in the empirical formula are suppose to be subscript)-Sodium carbonate dissociates to make sodium ions and carbonate ions, and carbonate ion promptly reacts with water to make HCO3- and O