Chemistry

Write a chemical equation for the following reaction

aqueous silver nitrate combines with solid sodium chloride to form aqueous silver cholride and solid sodium nitrate.-AgNO3+NaCl=AgCl+NaNO3 and just fyi all you have to do is either look on a periodic

Conceptual Question: What does "higher/lower MELTING point" mean

Hello, quick Organic Chemistry question. Im having trouble conceptualizing what it means when a molecular has a lower or higher melting point. Iunderstand boiling point (example of a higher boiling p

What is the empirical and molecular for a compound that is 36.1% Sr and 63.9% Br with a molar mass of 742 g/mo

Please help with this question.-Take a hypothetical 100 g sample of the compound. (36.1 g Sr) / (87.6210 g/mol) = 0.412001689 mole Sr (63.9 g Br) / (79.9041 g/mol) = 0.799708651 mole Br Divide by th

I really need help please !? asap

Question 1 (Essay Worth 4 points) What is the limiting reactant when 6.8 moles of iron react with 8.9 moles of oxygen gas? Unbalanced equation: Fe + O2 → Fe2O3 Show, or explain, all of your work a

What is the difference between empirical and molecular formula

For example, why is Benzenes empirical formula CH but its molecular formula is C(little)6H(little)6? What does the empirical formula tell us about a substance? thank you :)-the empirical formula is j

When a certain aqueous solution is diluted, its conductivity decreases but its pH remains constant.

The solution could be A ethanoic acid B sodium chloride C sodium hydroxide D nitric acid. please explain?-(fairly sure) B, sodium chloride. Not a chemistry expert, but my reasoning is this: For the

Chemistry exam question help

Tammy decided to test for sulphate ions. She added dilute hydrochloric acid to another portion of the solution. Which reagent should Tammy add to this mixture to show the presence of sulphate ions?

General chemistry question

A large bio-molecule is estimated to have a spherical shape with a radius of 25.0 nanometers. What is the volume of the bio-molecule in in^3?-The volume of a sphere has an equation of 4/3πr^3. So just

Acids and Bases Equilibrium Question

An acid and a base are mixed in equal amounts and with equal concentration. The pH of the resulting solution is 8.5. Why is this? I think its either: The base is stronger than the acid. or The base

Calculate the mass of nitrogen that would be produced when 130 g of sodium azide decomposes

Im doing a past paper for chemistry and i havnt been taught how to work out questions like these. Calculate the mass of nitrogen that would be produced when 130 g of sodium azide decomposes? The mix

Am I balancing this correctly

So im given: AgNO3 + NaCl --> What I have is: AgNO3 + 2NaCl --> AgCl2 + 2NaCl just wanna make sure im doing this correctly before i move on :)-Ag has a valency of 1. And NO3 has charge of -1. Na and

Why changing the pressure does not affect the yield of hydrogen at equilibrium

changing the pressure will cause the equilibrium to move to the side with fewer particles so it will affect the yield of any chemical. Is this question for a specific equation? Post more details on it

How is H3O+ possible.................

so im currently getting killed in organic chem...one of the things i dont get is how hydration works...there is an example in the textbook that shows 2-methylpropene reacting w/ hydronium (h30+) to pr

I'm worried I'm doing my dilutions wrong.

Alright, so I work in a lab but right now Im only doing dilutions on Mn standard. Its a 10,000 mg/L standard. So to start I want 100 mg/L so I talk 1 mL of the stock and add that to 100 mLs of water.

How do you read a burette

lets say if the burette goes from 0 to 50ml top to bottom, is the volume of the solution in the burette 50ml - the number at the meniscus?-Burettes measure from the top since they are used to measure